Effect (the source code network disk address is at the end)
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source code
index.html
<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="./style.css">
</head>
<body>
<div class="line"></div>
</body>
</html>
css
html {
height: 100%;
background: linear-gradient(#813b97, #463c96);
}
@-webkit-keyframes progress1 {
0% {
transform: scalex(0);
opacity: 0.5;
}
90% {
transform: scalex(1);
opacity: 1;
}
92% {
transform: scalex(1);
opacity: 1;
}
100% {
transform: scalex(1);
opacity: 0;
}
}