<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style>
div{
width: 100px;
height: 100px;
background-color: pink;
/* 谁做过渡给谁加 */
/* trasision：变化的属性 花费的时间 运动曲线 何时开始 */
transition: width 0.5s ,height 0.1s ease-in-out 1s;
/* transition: all 0.3s ; */
}
div:hover{
width: 300px;
height: 400px;
background-color: purple;
}
</style>
</head>
<body>
<div></div>
</body>
</html>
标签：background,color,100px,特性,height,width,过渡,css From： https://www.cnblogs.com/hs20011205/p/18024896