# flex + order 改变 DOM 在页面的 排序
主要使用：
- flex
- order
# 效果
# 代码
<!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>flex order</title>
<style>
ul {
display: flex;
list-style: none;
}
ul>li {
flex: 1;
width: 100px;
text-align: center;
margin: 10px;
background-color: #eee;
}
ul.order>li:nth-child(1) {
order: 1;
}
ul.order>li:nth-child(2) {
order: 2;
}
ul.order>li:nth-child(3) {
order: -1;
}
ul.order>li:nth-child(4) {
order: 4;
}
ul.column {
flex-direction: column;
}
</style>
</head>
<body>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
<ul class="order">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
<ul class="order column">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
</body>
</html>
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