The fullscreen pseudo-class
The pseudo-class fullscreen sets
a style of elements for full-screen browser
mode. In order to switch from the standard
page display mode to full screen and back,
you need to press the F11 key on
the keyboard.
Syntax
selector:fullscreen {
}
Example
Let's click to expand the element with text in full screen mode and recolor its background:
<div id="txt">
Full screen
</div>
<p>
<button onclick="fullScreen()">Click</button>
</p>
body {
margin: 0;
}
#txt {
padding: 10px;
background: #467CBC;
color: white;
width: 200px;
}
#txt:-webkit-full-screen {
background: #E37D76;
}
#txt:-moz-full-screen {
background: #E37D76;
}
#txt:-ms-fullscreen {
background: #E37D76;
}
function fullScreen() {
let elem = document.getElementById('txt'); // Getting the element
if (elem.webkitRequestFullscreen) elem.webkitRequestFullscreen(); // Chrome, Opera, Safari
else if (elem.mozRequestFullScreen) elem.mozRequestFullScreen(); // Firefox
else if (elem.msRequestFullscreen) elem.msRequestFullscreen(); // Internet Explorer, Edge
else if (elem.requestFullscreen) elem.requestFullscreen();
}
:
See also
-
the
:defaultpseudo-class
that sets a default style for elements
