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flex.html
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flex.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>flex</title>
<style>
* {
padding: 0;
margin: 0;
}
.demo-1 {
display: flex;
justify-content: center;
align-items: center;
height: 33vh;
border: 1px solid #ccc;
font-weight: ;
}
.demo-1 .content {
width: 100px;
height: 100px;
background-color: #ccc564;
}
.demo-2 {
display: flex;
/* 设置等高 */
align-items: stretch;
}
.left {
width: 100px;
background-color: #ffb7b2;
}
.right {
width: 100px;
height: 300px;
background-color: #8affb4;
}
.demo-3 {
display: flex;
height: 100px;
}
.left-2 {
width: 200px;
height: 100%;
background-color: #3acdff;
/* 设置不缩小 */
flex-shrink: 0;
}
.right-2 {
height: 100%;
background-color: #46ff6f;
/* 设置占用剩余空间 */
flex-grow: 1;
}
</style>
</head>
<body>
<!-- 使用flex布局解决css三大经典问题 -->
<!-- 水平垂直居中 -->
<div class="demo-1">
<div class="content"></div>
</div>
<!-- 两列等高 -->
<div class="demo-2">
<div class="left"></div>
<div class="right"></div>
</div>
<!-- 左边固定右边自适应 -->
<div class="demo-3">
<div class="left-2"></div>
<div class="right-2"></div>
</div>
</body>
</html>