<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
#contant {
position: relative;
align-items: center;
min-height: 100vh;
background-color: rgb(118, 218, 255);
overflow: hidden;
}
#contant:before, #contant:after {
content: "";
position: absolute;
left: 50%;
min-width: 300vw;
min-height: 300vw;
background-color: #fff;
animation-name: rotate;
animation-iteration-count: infinite;
animation-timing-function: linear;
}
#contant:before {
bottom: 15vh;
border-radius: 45%;
animation-duration: 10s;
}
#contant:after {
bottom: 12vh;
opacity: .5;
border-radius: 47%;
animation-duration: 10s;
}
@keyframes rotate {
0% {
transform: translate(-50%, 0) rotateZ(0deg);
}
50% {
transform: translate(-50%, -2%) rotateZ(180deg);
}
100% {
transform: translate(-50%, 0%) rotateZ(360deg);
}
}
h2 {
position: relative;
color: #333;
z-index: 10;
text-align: center;
height: 100vh;
line-height: 140vh;
font-size: 8vw;
text-shadow: 3px 3px 2px #999;
}
</style>
</head>
<body>
<div id="contant">
<h2>哈哈哈</h2>
</div>
</body>
</html>
