<!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>Document</title>
<style>
.transition {
margin: 100px 100px;
300px;
height: 200px;
background-color: #3a9;
transition-property: width height transform;
transition-delay: 2s;
transition-timing-function: linear;
transition-duration: 4s
}
.transition:hover {
200px;
height: 100px;
transform: rotate(90deg);
}
</style>
</head>
<body>
<div class="transition">高</div>
</body>
</html>