动画过渡简写和复合写法
拆开写
transition-property: height background; 单独设置宽高或者all
transition-duration: 2s; 运动时间
transition-timing-function: linear; 不同速度类型
transition-delay: 5s; 延迟时间
<!DOCTYPE html>
<html lang="en">
<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>Document</title>
<style>
div{
width: 200px;
height: 200px;
background: yellow;
transition-property: height background;
/* 单独设置宽高或者all、 */
transition-duration: 2s;
/* 运动时间 */
transition-timing-function: linear;
/* 不同速度类型 */
transition-delay: 5s;
/* 延迟时间 */
}
div:hover{
height: 600px;
background: red;
}
</style>
</head>
<body>
<div></div>
</body>
</html>复合写法
<!DOCTYPE html>
<html lang="en">
<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>Document</title>
<style>
div{
width: 200px;
height: 200px;
background: red;
transition:all 2s linear 2s;
/* all:所有属性
2s 动画时间
linear 默认匀速
2s 延迟2s
*/
}
div:hover{
width: 400px;
height: 600px;
background: yellow;
}
</style>
</head>
<body>
<div></div>
</body>
</html> 
6种不同类型的过渡
cubic-bezier.com
https://cubic-bezier.com/#.17,.67,.83,.67
<!DOCTYPE html>
<html lang="en">
<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>Document</title>
<style>
ul{
list-style: none;
}
li{
width: 200px;
height: 50px;
border: 1px solid gray;
}
ul:hover li:nth-child(1){
width: 600px;
transition: all 2s linear;
}
ul:hover li:nth-child(2){
width: 600px;
transition: all 2s ease;
}
ul:hover li:nth-child(3){
width: 600px;
transition: all 2s ease-in;
}
ul:hover li:nth-child(4){
width: 600px;
transition: all 2s ease-in-out;
}
ul:hover li:nth-child(5){
width: 600px;
transition: all 2s ease-in-out;
}
ul:hover li:nth-child(6){
width: 600px;
transition: all 2s cubic-bezier(.17,.67,1,-0.06);
}
</style>
</head>
<body>
<ul>
<li>匀速</li>
<li>逐渐慢</li>
<li>加速</li>
<li>减速</li>
<li>先加速后减速</li>
<li>贝塞尔曲线</li>
</ul>
</body>
</html> 