<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
list-style: none;
}
body {
background-color: #eee;
font-size: 22px;
}
h3 {
margin: 10px;
font-weight: normal;
}
section {
width: 1000px;
margin: 0 auto;
}
ul {
background-color: #fff;
border: 1px solid #ccc;
}
ul li {
width: 200px;
height: 200px;
background-color: pink;
margin: 10px;
}
section:nth-child(1) ul {
display: flex;
}
section:nth-child(1) ul li:nth-child(1){
flex: 1;
}
section:nth-child(1) ul li:nth-child(2){
flex: 2;
}
section:nth-child(1) ul li:nth-child(3){
flex: 8;
}
section:nth-child(2) ul {
display: flex;
}
section:nth-child(2) ul li:nth-child(1){
}
section:nth-child(2) ul li:nth-child(2){
flex: 1;
}
section:nth-child(2) ul li:nth-child(3){
flex: 4;
}
</style>
</head>
<body>
<section>
<h3>伸缩比例 flex</h3>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
</section>
<section>
<h3>伸缩比例 flex, 设置第一个盒子不参与划分，后面的空间给后面2个子盒子按指定比例分割</h3>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
</section>
</body>
</html>
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demo 效果:
