代码语言：javascript复制
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>131-伸缩布局</title>
<style>
*{
margin: 0;
padding: 0;
}
ul{
list-style: none;
width: 600px;
height: 600px;
border: 1px solid #000;
margin: 100px auto;
display: flex;
}
ul>li {
width: 100px;
height: 100px;
line-height: 100px;
text-align: center;
font-size: 30px;
background: red;
}
ul>li:nth-child(1){
/*
flex: 扩充 缩小 宽度;
flex默认值
flex: 0 1 auto;
*/
flex: 0 1 100px;
}
ul>li:nth-child(2){
background: green;
flex: 0 1 200px;
}
ul>li:nth-child(3){
background: blue;
flex: 0 1 300px;
}
</style>
</head>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
</body>
</html>
