<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>伸缩盒子案例：宽高自动适应</title>
<style>
* {
padding: 0;
margin: 0;
}
.layout {
width: 500px;
height: 600px;
background-color: #CCCCCC;
margin: 10px auto;
/* 设置父容器为伸缩盒子 */
display: flex;
/* 默认主轴方向是row, 需要以列的方式排列 */
flex-direction: column;
}
header {
width: 100%;
height: 60px;
background-color: red;
}
main{
width: 100%;
background-color: green;
flex: 1;
/* 设置main为伸缩盒子*/
display: flex;
}
main>article {
height: 100%;
flex: 1;
background-color: pink;
}
main>aside{
height: 100%;
flex: 3;
background-color: fuchsia;
}
footer{
width: 100%;
height: 80px;
background-color: yellow;
}
</style>
</head>
<body>
<div class="layout">
<header></header>
<main>
<article></article>
<aside></aside>
</main>
<footer></footer>
</div>
</body>
</html>