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<title data-react-helmet="true">Styling</title>
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<meta data-react-helmet="true" http-equiv="x-ua-compatible" content="ie=edge"/><meta data-react-helmet="true" property="og:title" content="NodeGui · Build performant, native, cross platform desktop apps with JavaScript and CSS 🚀"/><meta data-react-helmet="true" name="twitter:card" content="summary"/><meta data-react-helmet="true" name="description" content="With NodeGui, you can style a widget to your needs. If you are familiar with CSS in the web world you would feel right at home. All widgets have a method `setInlineStyle` for setting inline styles for the respective widget. The style names and values usually match how CSS works on the web."/><meta data-react-helmet="true" property="og:description" content="With NodeGui, you can style a widget to your needs. If you are familiar with CSS in the web world you would feel right at home. All widgets have a method `setInlineStyle` for setting inline styles for the respective widget. The style names and values usually match how CSS works on the web."/><meta data-react-helmet="true" property="og:url" content="https://nodegui.org/docs/guides/styling"/>
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<link data-react-helmet="true" rel="shortcut icon" href="/img/favicon.ico"/>
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</head>
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<body >
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<script type="text/javascript">(function() {
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function setDataThemeAttribute(theme) {
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document.querySelector('html').setAttribute('data-theme', theme);
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}
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var preferDarkQuery = '(prefers-color-scheme: dark)';
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var mql = window.matchMedia(preferDarkQuery);
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var supportsColorSchemeQuery = mql.media === preferDarkQuery;
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var localStorageTheme = null;
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try {
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localStorageTheme = localStorage.getItem('theme');
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} catch (err) {}
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var localStorageExists = localStorageTheme !== null;
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if (localStorageExists) {
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setDataThemeAttribute(localStorageTheme);
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} else if (supportsColorSchemeQuery && mql.matches) {
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setDataThemeAttribute('dark');
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}
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<nav class="navbar navbar--light navbar--fixed-top"><div class="navbar__inner"><div class="navbar__items"><div aria-label="Navigation bar toggle" class="navbar__toggle" role="button" tabindex="0"><svg xmlns="http://www.w3.org/2000/svg" width="30" height="30" viewBox="0 0 30 30" role="img" focusable="false"><title>Menu</title><path stroke="currentColor" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" d="M4 7h22M4 15h22M4 23h22"></path></svg></div><a aria-current="page" class="navbar__brand active" href="/"><img class="navbar__logo" src="/img/logo-circle.png" alt="NodeGui Logo"/><strong class="">NodeGui</strong></a></div><div class="navbar__items navbar__items--right"><a class="navbar__item navbar__link" href="/docs/guides/getting-started">Docs</a><a class="navbar__item navbar__link" href="/docs/api/manual/synopsis">API</a><a class="navbar__item navbar__link" href="/blog">Blog</a><a class="navbar__item navbar__link" target="_blank" rel="noopener noreferrer" href="https://github.com/nodegui/nodegui">GitHub</a><div class="react-toggle react-toggle--disabled displayOnlyInLargeViewport_1gtM"><div class="react-toggle-track"><div class="react-toggle-track-check"><span class="toggle_keGJ moon_1gwN"></span></div><div class="react-toggle-track-x"><span class="toggle_keGJ sun_3CPA"></span></div></div><div class="react-toggle-thumb"></div><input type="checkbox" disabled="" aria-label="Dark mode toggle" class="react-toggle-screenreader-only"/></div></div></div><div role="presentation" class="navbar-sidebar__backdrop"></div><div class="navbar-sidebar"><div class="navbar-sidebar__brand"><a aria-current="page" class="navbar__brand active" href="/"><img class="navbar__logo" src="/img/logo-circle.png" alt="NodeGui Logo"/><strong>NodeGui</strong></a></div><div class="navbar-sidebar__items"><div class="menu"><ul class="menu__list"><li class="menu__list-item"><a class="menu__link" href="/docs/guides/getting-started">Docs</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/api/manual/synopsis">API</a></li><li class="menu__list-item"><a class="menu__link" href="/blog">Blog</a></li><li class="menu__list-item"><a class="menu__link" target="_blank" rel="noopener noreferrer" href="https://github.com/nodegui/nodegui">GitHub</a></li></ul></div></div></div></nav><div class="main-wrapper"><div class="docPage_1kjD"><div class="docSidebarContainer_1cYp"><div class="sidebar_1kLs"><div class="menu menu--responsive"><button aria-label="Open Menu" class="button button--secondary button--sm menu__button" type="button"><svg class="sidebarMenuIcon_2vk4" xmlns="http://www.w3.org/2000/svg" height="24" width="24" viewBox="0 0 32 32" role="img" focusable="false"><title>Menu</title><path stroke="currentColor" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" d="M4 7h22M4 15h22M4 23h22"></path></svg></button><ul class="menu__list"><li class="menu__list-item"><a class="menu__link menu__link--sublist menu__link--active" href="#!">The Basics</a><ul class="menu__list"><li class="menu__list-item"><a class="menu__link" href="/docs/guides/getting-started">Getting started</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/tutorial">Learn the Basics</a></li><li class="menu__list-item"><a aria-current="page" class="menu__link menu__link--active" href="/docs/guides/styling">Styling</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/layout">Layout</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/handle-events">Handle Events</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/scroll-view">Scroll View</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/images">Images</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/networking">Networking</a></li></ul></li><li class="menu__list-item menu__list-item--collapsed"><a class="menu__link menu__link--sublist" href="#!">Guides</a><ul class="menu__list"><li class="menu__list-item"><a class="menu__link" href="/docs/guides/nodegui-architecture">Architecture</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/debugging">Debugging</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/debugging-in-vscode">Debugging in VSCode</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/using-native-node-modules">Native Node Modules</a></li><li class="menu__list-item"><a class="menu__link" href="/docs/guides/custom-nodegui-native-plugin">Custom NodeGui Plugin</a></li></ul></li></ul></div></div></div><main class="docMainContainer_FFX1"><div class="padding-vert--lg"><div class="container"><div class="row"><div class="col"><div class="docItemContainer_2cwg"><article><header><h1 class="docTitle_1vWb">Styling</h1></header><div class="markdown"><p>With NodeGui, you can style a widget to your needs. If you are familiar with CSS in the web world you would feel right at home. All widgets have a method <code>setInlineStyle</code> for setting inline styles for the respective widget. The style names and values usually match how CSS works on the web.</p><p>Here's an example:</p><pre class="mdxCodeBlock_iHAB"><div class="codeBlockWrapper_2QGZ"><pre class="prism-code language-js codeBlock_19pQ" style="color:#bfc7d5;background-color:#292d3e"><div class="token-line" style="color:#bfc7d5"><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"> </span><span class="token maybe-class-name">QLabel</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token maybe-class-name">QMainWindow</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">require</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"@nodegui/nodegui"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> win </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">QMainWindow</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> label </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">QLabel</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain">win</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">label</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setText</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"Hello world"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">label</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setInlineStyle</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"color: green; background-color: white;"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">win</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">show</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">global</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token property-access">win</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> win</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span></div></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_1BYj">Copy</button></div></pre><h2><a aria-hidden="true" tabindex="-1" class="anchor" id="overview"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#overview" title="Direct link to heading">#</a>Overview</h2><p>NodeGui makes use of <a href="https://doc.qt.io/qt-5/stylesheet-syntax.html">Qt's stylesheet</a> for styling. Qt Style Sheet terminology and syntactic rules are almost identical to those of HTML CSS. Additionally, NodeGui adds support for layout using flex properties like align-items, justify-content, etc. Flexbox layout support is added using <a href="https://github.com/facebook/yoga">facebook's yoga library</a>.</p><p>You would write your style properties in a string and pass it to the NodeGui widgets either via global styles or inline styles (similar to how it works in the web).</p><h2><a aria-hidden="true" tabindex="-1" class="anchor" id="global-styles"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#global-styles" title="Direct link to heading">#</a>Global styles</h2><p>Lets take a look at an example:</p><pre class="mdxCodeBlock_iHAB"><div class="codeBlockWrapper_2QGZ"><pre class="prism-code language-js codeBlock_19pQ" style="color:#bfc7d5;background-color:#292d3e"><div class="token-line" style="color:#bfc7d5"><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"> </span><span class="token maybe-class-name">QLabel</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token maybe-class-name">FlexLayout</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token maybe-class-name">QWidget</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">require</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"@nodegui/nodegui"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> view </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">QWidget</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setObjectName</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"rootView"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setLayout</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token keyword" style="font-style:italic">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">FlexLayout</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> label </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">QLabel</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">label</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setObjectName</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"helloLabel"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">label</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setText</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"Hello"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> label2 </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">QLabel</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">label2</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setObjectName</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"worldLabel"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">label2</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setText</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"World"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token property-access">layout</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">addWidget</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain">label</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token property-access">layout</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">addWidget</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain">label2</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setStyleSheet</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token template-string template-punctuation string" style="color:rgb(195, 232, 141)">`</span><span class="token template-string string" style="color:rgb(195, 232, 141)"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> #helloLabel {</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> color: red;</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> padding: 10px;</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> }</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> #worldLabel {</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> color: green;</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> padding: 10px;</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> }</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> #rootView {</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> background-color: black;</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"> }</span></div><div class="token-line" style="color:#bfc7d5"><span class="token template-string string" style="color:rgb(195, 232, 141)"></span><span class="token template-string template-punctuation string" style="color:rgb(195, 232, 141)">`</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">show</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain">global </span><span class="token keyword module" style="font-style:italic">as</span><span class="token plain"> any</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token property-access">view</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span></div></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_1BYj">Copy</button></div></pre><p>In the case of global stylesheet you can define all your style properties in a stylesheet string and the tell the root view or window to set it as a stylsheet for it and its child widgets. The only difference here from web is that you can set a stylesheet on a widget at any level in the whole tree of widgets, the stylesheet will affect the widget and its children.</p><p>In the above example, in order to reference a widget in a stylesheet we will assign it a <code>objectName</code> using setObjectName instance method. Think of objectName as something similar to an <code>id</code> in the case of web. Now using the objectName you could reference the widget in the stylesheet and set style properties on them. Do not worry about the layout stuff that is going on here, that will be covered in the next section.</p><p>Global stylesheet really becomes powerful when you use things like pseudo-selectors (hover, checked, etc). It also has helps in implementing cascaded styles which allow you to style a group of widgets at once. We will see more about these features below.</p><blockquote><p>More details on all the features and the syntax can be found here: <a href="https://doc.qt.io/qt-5/stylesheet-syntax.html">https://doc.qt.io/qt-5/stylesheet-syntax.html</a></p></blockquote><h2><a aria-hidden="true" tabindex="-1" class="anchor" id="inline-styles"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#inline-styles" title="Direct link to heading">#</a>Inline styles</h2><p>Lets look at this example again:</p><pre class="mdxCodeBlock_iHAB"><div class="codeBlockWrapper_2QGZ"><pre class="prism-code language-js codeBlock_19pQ" style="color:#bfc7d5;background-color:#292d3e"><div class="token-line" style="color:#bfc7d5"><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"> </span><span class="token maybe-class-name">QLabel</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token maybe-class-name">QMainWindow</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">require</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"@nodegui/nodegui"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> win </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">QMainWindow</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token keyword" style="font-style:italic">const</span><span class="token plain"> label </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> </span><span class="token keyword" style="font-style:italic">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 107)">QLabel</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token plain">win</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">label</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setText</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"Hello world"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">label</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setInlineStyle</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(195, 232, 141)">"color: green; background-color: white;"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">win</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">show</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">global</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token property-access">win</span><span class="token plain"> </span><span class="token operator" style="color:rgb(137, 221, 255)">=</span><span class="token plain"> win</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span></div></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_1BYj">Copy</button></div></pre><p>In most cases it would be easier to style the widgets inline. NodeGui supports inline styling using <code>setInlineStyle</code> instance method. Inline styles will only affect the widget to which the style is applied to and is often easier to understand and manage. All properties you use in the global stylesheet are available in inline styles as well.</p><h2><a aria-hidden="true" tabindex="-1" class="anchor" id="selectors"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#selectors" title="Direct link to heading">#</a>Selectors</h2><p>NodeGui style sheets support all the selectors defined in CSS2.
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Some examples include:</p><pre class="mdxCodeBlock_iHAB"><div class="codeBlockWrapper_2QGZ"><pre class="prism-code language-css codeBlock_19pQ" style="color:#bfc7d5;background-color:#292d3e"><div class="token-line" style="color:#bfc7d5"><span class="token selector" style="color:rgb(199, 146, 234)">*</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">color</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> blue</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token selector" style="color:rgb(199, 146, 234)">QPushButton</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">padding</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">10</span><span class="token unit">px</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token selector id" style="color:rgb(199, 146, 234)">#okButton</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">margin</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">10</span><span class="token unit">px</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token selector id" style="color:rgb(199, 146, 234)">#mainView</span><span class="token selector" style="color:rgb(199, 146, 234)"> > QPushButton</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">margin</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">10</span><span class="token unit">px</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span></div></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_1BYj">Copy</button></div></pre><p>To see a complete list of selectors see here: <a href="https://doc.qt.io/qt-5/stylesheet-syntax.html#selector-types">https://doc.qt.io/qt-5/stylesheet-syntax.html#selector-types</a></p><h2><a aria-hidden="true" tabindex="-1" class="anchor" id="pseudo-states"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#pseudo-states" title="Direct link to heading">#</a>Pseudo states</h2><p>Like in the web, you can style your widget based on its state. An example would be, you might want the color of the button text to be red when its hovered upon. These are possible with pseudo states. Pseudo-states appear at the end of the selector, with a colon (:) in between.</p><pre class="mdxCodeBlock_iHAB"><div class="codeBlockWrapper_2QGZ"><pre class="prism-code language-css codeBlock_19pQ" style="color:#bfc7d5;background-color:#292d3e"><div class="token-line" style="color:#bfc7d5"><span class="token selector id" style="color:rgb(199, 146, 234)">#okButton</span><span class="token selector pseudo-class" style="color:rgb(199, 146, 234)">:hover</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">color</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> red</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span></div></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_1BYj">Copy</button></div></pre><blockquote><p>More details here : <a href="https://doc.qt.io/qt-5/stylesheet-syntax.html#pseudo-states">https://doc.qt.io/qt-5/stylesheet-syntax.html#pseudo-states</a></p></blockquote><h2><a aria-hidden="true" tabindex="-1" class="anchor" id="cascading"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#cascading" title="Direct link to heading">#</a>Cascading</h2><p>Style sheets can be set on the parent widgets and on child widgets. An arbitrary widget's effective style sheet is obtained by merging the style sheets set on the widget's ancestors (parent, grandparent, etc.).</p><p>When conflicts arise, the widget's own inline style sheet is always preferred to any inherited style sheet, irrespective of the specificity of the conflicting rules. Likewise, the parent widget's style sheet is preferred to the grandparent's, etc.</p><p>The behaviour is similar to what we see on the web.</p><blockquote><p>For more in depth examples see here: <a href="https://doc.qt.io/qt-5/stylesheet-syntax.html#cascading">https://doc.qt.io/qt-5/stylesheet-syntax.html#cascading</a></p></blockquote><h2><a aria-hidden="true" tabindex="-1" class="anchor" id="properties"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#properties" title="Direct link to heading">#</a>Properties</h2><p>NodeGui style sheets is a css string.</p><p>For example:</p><pre class="mdxCodeBlock_iHAB"><div class="codeBlockWrapper_2QGZ"><pre class="prism-code language-undefined codeBlock_19pQ" style="color:#bfc7d5;background-color:#292d3e"><div class="token-line" style="color:#bfc7d5"><span class="token plain">const textStyle = `</span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> color: 'green';</span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> padding: 12;</span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> height: '100%';</span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain">`;</span></div></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_1BYj">Copy</button></div></pre><p>Here if you look carefully, you would notice that there are some differences in the way we write style properties as compared to web.
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The quotes you see around <code>'green'</code> and <code>'100%'</code> are necessary so that Qt doesnt interpret them as numbers.
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So the rule of thumb is that any integer based property like margin, border, etc can be written without quotes while any string property, it is better to surround them with quotes. PS: Qt does recognise some string based properties without quotes also.</p><h2><a aria-hidden="true" tabindex="-1" class="anchor" id="supported-properties"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#supported-properties" title="Direct link to heading">#</a>Supported properties</h2><p>Since we are not running inside a web browser, there are few differences in the properties you could use in NodeGui vs in web.</p><p>The complete list is detailed here: <a href="https://doc.qt.io/qt-5/stylesheet-reference.html#list-of-properties">https://doc.qt.io/qt-5/stylesheet-reference.html#list-of-properties</a></p><p>Apart from the properties listed in the link, NodeGui also supports layout properties related to Flex. You can use all flex properties such as align-items, justify-content, flex, etc on all widgets. <a href="/docs/guides/layout">The layout styling will be coverted in more detail in the section: Layout.</a></p><h2><a aria-hidden="true" tabindex="-1" class="anchor" id="advanced-usage-setting-qobject-properties"></a><a aria-hidden="true" tabindex="-1" class="hash-link" href="#advanced-usage-setting-qobject-properties" title="Direct link to heading">#</a>Advanced usage (Setting QObject Properties)</h2><p>In Qt, every widget has certain properties set on them using something called as <a href="https://doc.qt.io/qt-5/qobject.html#Q_PROPERTY">Q_PROPERTY</a>. There are many q-properties that are defined on each widget already. You can also define custom qproperties in the native C++ code yourself too. What does it have to do with styling ? The thing is some of these properties can be altered using qt stylesheet. In Qt's terminology, these properties are called designable properties.</p><p>For example:</p><pre class="mdxCodeBlock_iHAB"><div class="codeBlockWrapper_2QGZ"><pre class="prism-code language-css codeBlock_19pQ" style="color:#bfc7d5;background-color:#292d3e"><div class="token-line" style="color:#bfc7d5"><span class="token selector" style="color:rgb(199, 146, 234)">MyLabel</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">qproperty-alignment</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> AlignCenter</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token selector" style="color:rgb(199, 146, 234)">MyGroupBox</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">qproperty-titlecolor</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">rgb</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token number" style="color:rgb(247, 140, 108)">100</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">200</span><span class="token punctuation" style="color:rgb(199, 146, 234)">,</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">100</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token selector" style="color:rgb(199, 146, 234)">QPushButton</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"> </span><span class="token property">qproperty-iconsize</span><span class="token punctuation" style="color:rgb(199, 146, 234)">:</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">20</span><span class="token unit">px</span><span class="token plain"> </span><span class="token number" style="color:rgb(247, 140, 108)">20</span><span class="token unit">px</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#bfc7d5"><span class="token plain"></span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span></div></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_1BYj">Copy</button></div></pre><p>You can discover these properties by following Qt's documentation or by running a simple google search like "center text in QLabel using stylesheet in Qt". These are advanced properties and in practice will come in use rarely but its good to know.</p><blockquote><p>More details : <a href="https://doc.qt.io/qt-5/stylesheet-syntax.html#setting-qobject-properties">https://doc.qt.io/qt-5/stylesheet-syntax.html#setting-qobject-properties</a></p></blockquote><hr/><p>In this section, we mostly covered the paint properties in the NodeGui stylesheet. The next section would cover on how you can use flex to layout your widgets with stylesheet.</p></div></article><div class="margin-vert--lg"><nav class="pagination-nav"><div class="pagination-nav__item"><a class="pagination-nav__link" href="/docs/guides/tutorial"><h5 class="pagination-nav__link--sublabel">Previous</h5><h4 class="pagination-nav__link--label">« <!-- -->Learn the Basics</h4></a></div><div class="pagination-nav__item pagination-nav__item--next"><a class="pagination-nav__link" href="/docs/guides/layout"><h5 class="pagination-nav__link--sublabel">Next</h5><h4 class="pagination-nav__link--label">Layout<!-- --> »</h4></a></div></nav></div></div></div><div class="col col--3"><div class="tableOfContents_TbNY"><ul class="contents contents__left-border"><li><a href="#overview" class="contents__link">Overview</a></li><li><a href="#global-styles" class="contents__link">Global styles</a></li><li><a href="#inline-styles" class="contents__link">Inline styles</a></li><li><a href="#selectors" class="contents__link">Selectors</a></li><li><a href="#pseudo-states" class="contents__link">Pseudo states</a></li><li><a href="#cascading" class="contents__link">Cascading</a></li><li><a href="#properties" class="contents__link">Properties</a></li><li><a href="#supported-properties" class="contents__link">Supported properties</a></li><li><a href="#advanced-usage-setting-qobject-properties" class="contents__link">Advanced usage (Setting QObject Properties)</a></li></ul></div></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container"><div class="row footer__links"><div class="col footer__col"><h4 class="footer__title">Docs</h4><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/docs/guides/getting-started">Getting Started</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/api/manual/synopsis">API</a></li></ul></div><div class="col footer__col"><h4 class="footer__title">Community</h4><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" target="_blank" rel="noopener noreferrer" href="https://spectrum.chat/nodegui">Spectrum</a></li><li class="footer__item"><a class="footer__link-item" to="https://twitter.com/node_gui" href="https://twitter.com/node_gui">Twitter</a></li><li class="footer__item"><a class="footer__link-item" to="https://medium.com/nodegui" href="https://medium.com/nodegui">Medium</a></li></ul></div><div class="col footer__col"><h4 class="footer__title">More</h4><ul class="footer__items"><li class="footer__item"><a class="footer__link-item" href="/blog">Blog</a></li><li class="footer__item"><a class="footer__link-item" to="https://react.nodegui.org" href="https://react.nodegui.org">React NodeGui</a></li><li class="footer__item"><a class="footer__link-item" href="/docs/faq">FAQ</a></li></ul></div></div><div class="text--center">Copyright © 2019 NodeGui</div></div></footer>
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