<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
*{
border:0;
margin:0;
padding:0;
box-sizing:border-box;
}
.container{
/*设置弹性盒模型*/
display: -webkit-flex;
padding:20px;
/*纵向对齐*/
-webkit-align-items: center;
/*横向平铺*/
-webkit-justify-content: space-between;
}
.container div{
150px;
border:1px solid #f00;
padding:20px;
margin-bottom: 20px;
}
.container .box1{
height: 120px;
}
.container .box2{
height:100px;
}
.container .box3{
height:40px;
}
.container .box4{
height:200px;
border:1px solid #0f0;
}
@media (max-640px) {
/*控制顺序*/
.container div:nth-of-type(1){ -webkit-order:2;}
.container div:nth-of-type(2){ -webkit-order:3;}
.container div:nth-of-type(3){ -webkit-order:4;}
.container div:nth-of-type(4){ -webkit-order:1;}
.container{
display: -webkit-flex;
padding:20px;
/*纵向顶部对齐*/
-webkit-align-items: flex-start ;
/*平均分布*/
-webkit-justify-content: space-between;
/*自动换行*/
-webkit-flex-wrap:wrap;
}
}
</style>
</head>
<body>
<div class="container">
<div class="box1"></div>
<div class="box2"></div>
<div class="box3"></div>
<div class="box4"></div>
</div>
</body>
</html>