<!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>Document</title>
<style>
.parent{
width: 400px;
height: 300px;
background-color: #ccc;
margin: 0 auto;
display: flex;
flex-direction: row;
/* 更改主轴弹性元素对齐方式 默认值flex-start 主轴起点对齐 */
/* flex-end 主轴终点对齐 center 中间对齐 */
/* justify-content: flex-end; */
/* 中间弹性元素空间是左右弹性元素空间的两倍 */
/* justify-content: space-around; */
/* 空间均匀分配 每个元素左右两侧空间相等 */
/* justify-content: space-evenly; */
/* 最左侧和最右侧弹性元素紧贴父容器排列 */
/* justify-content: space-between; */
/* 拉伸对齐平铺 默认占满父容器的高度 若给弹性元素设置height stretch失效*/
/* justify-content: stretch; */
}
.parent>div{
width: 60px;
/* height: 50px; */
color: white;
}
</style>
</head>
<body>
<div class="parent">
<div class="div1" style="background-color: red;">弹性元素1</div>
<div class="div2" style="background-color: green;">弹性元素2</div>
<div class="div3" style="background-color: blue;">弹性元素3</div>
</div>
</body>
</html>
