66 lines
1.2 KiB
Markdown
66 lines
1.2 KiB
Markdown
---
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title: Fullscreen
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tags: visual,intermediate
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---
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The :fullscreen CSS pseudo-class represents an element that's displayed when the browser is in fullscreen mode.
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#### HTML
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```html
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<div class="container">
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<p><em>Click the button below to enter the element into fullscreen mode. </em></p>
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<div class="element" id="element"><p>I change color in fullscreen mode!</p></div>
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<br />
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<button onclick="var el = document.getElementById('element'); el.requestFullscreen();">
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Go Full Screen!
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</button>
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</div>
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```
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#### CSS
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```css
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.container {
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margin: 40px auto;
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max-width: 700px;
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}
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.element {
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padding: 20px;
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height: 300px;
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width: 100%;
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background-color: skyblue;
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}
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.element p {
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text-align: center;
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color: white;
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font-size: 3em;
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}
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.element:-ms-fullscreen p {
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visibility: visible;
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}
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.element:fullscreen {
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background-color: #e4708a;
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width: 100vw;
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height: 100vh;
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}
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```
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#### Demo
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#### Explanation
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1. `fullscreen` CSS pseudo-class selector is used to select and style an element that is being displayed in fullscreen mode.
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#### Browser support
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- https://developer.mozilla.org/en-US/docs/Web/CSS/:fullscreen
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- https://caniuse.com/#feat=fullscreen
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