index.html
<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>My Animation</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="box"></div>
</body>
</html>style.css
@charset "utf-8";
.box {
width: 80px;
height: 80px;
background: pink;
animation-name: move-around;
animation-duration: 4s;
animation-iteration-count: infinite;
}
@keyframes move-around {
25% {
transform: translate(100px, 0);
border-radius: 0;
}
50% {
transform: translate(100px, 100px);
border-radius: 50%;
}
75% {
transform: translate(0, 100px);
border-radius: 0;
}
}