<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
* {
padding: 0;
margin: 0;
}
div {
100px;
height: 100px;
background: linear-gradient(to bottom, #00a4ff, #1c036c);
animation: yidong linear 2s infinite;
}
@keyframes yidong {
0% {
transform: translate(0px, 0px);
}
25% {
transform: translate(440px, 0px);
}
50% {
transform: translate(440px, 440px);
}
75% {
transform: translate(0px, 440px);
}
100% {
transform: translate(0px, 0px);
}
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>
