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index.html
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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Get a Black Screen!</title>
<style>
body {
width: 100vw;
height: 100vh;
overflow: hidden;
}
button {
position: absolute;
top: 50%;
left: 50%;
padding: 20px;
box-shadow: none;
background-color: #ccc;
border: 0;
border-radius: 10px;
cursor: pointer;
}
button:hover {
background-color: #eee;
}
</style>
</head>
<body style="background-color:black">
<button id="button" onclick="openFullscreen()">Go Full Screen</button>
<script>
// var elem = document.documentElement;
// function openFullscreen() {
// if (elem.requestFullscreen) {
// elem.requestFullscreen();
// } else if (elem.mozRequestFullScreen) {
// /* Firefox */
// elem.mozRequestFullScreen();
// } else if (elem.webkitRequestFullscreen) {
// /* Chrome, Safari & Opera */
// elem.webkitRequestFullscreen();
// } else if (elem.msRequestFullscreen) {
// /* IE/Edge */
// elem.msRequestFullscreen();
// }
// }
var a = 0;
var body = document.body;
var button = document.getElementsByTagName("button");
function openFullscreen() {
if (a == 0) {
body.requestFullscreen();
body.mozRequestFullScreen();
body.webkitRequestFullscreen();
body.msRequestFullscreen();
button[0].innerHTML = "Exit Full Screen";
a = 1;
} else {
document.exitFullscreen();
button[0].innerHTML = "Go Full Screen";
a = 0;
}
}
</script>
</body>
</html>