上一篇写的是，根据上一篇的内容，总结了下上下宽高固定，中间自适应的几种布局方式，话不多说，直接上代码。
我要评论<!doctype html>
<html>
<head>
<title>上中下三栏布局</title>
<style type="text/css">
html * {
padding: 0;
margin: 0;
}
html, body{
height:100%;
}
.layout{
width: 200px;
height: 100%;
display: inline-block;
overflow: hidden;
}
.layout .three_columns > div{
width: 200px;
}
</style>
</head>
<body>
<!-- 第一种布局：position -->
<section class="layout position">
<style type="text/css">
.layout.position .top{
position: absolute;
top: 0;
height: 200px;
background: #90d9f7;
}
.layout.position .middle{
position: absolute;
top: 200px;
bottom: 200px;
background: pink;
}
.layout.position .bottom{
position: absolute;
bottom: 0;
height: 200px;
background: #f5de25;
}
.clear{ clear:both}
</style>
<article class="three_columns">
<div class="top">上</div>
<div class="middle">
<h1>position布局</h1>
</div>
<div class="bottom">下</div>
<div class="clear"></div>
</article>
</section>
<!-- 第二种布局：flex -->
<section class="layout flexbox">
<style type="text/css">
.layout.flexbox{
margin-left: 20px;
height: 100%;
}
.layout.flexbox .three_columns{
width: 200px;
height: 100%;
display: flex;
flex-direction: column;
}
.layout.flexbox .top{
height: 200px;
background: #90d9f7;
}
.layout.flexbox .middle{
flex: 1;
background: pink;
overflow: auto;
}
.layout.flexbox .bottom{
height: 200px;
background: #f5de25;
}
</style>
<article class="three_columns">
<div class="top">上</div>
<div class="middle">
<h1>flexbox布局</h1>
</div>
<div class="bottom">下</div>
</article>
</section>
<!-- 第三种布局：table -->
<section class="layout table">
<style type="text/css">
.layout.table{
margin-left: 20px;
height: 100%;
}
.layout.table .three_columns{
width: 200px;
height: 100%;
display: table;
}
.layout.table .three_columns > div{
display: table-row;
vertical-align: middle;
}
.layout.table .top{
height: 200px;
background: #90d9f7;
}
.layout.table .middle{
background: pink;
overflow: auto;
}
.layout.table .bottom{
height: 200px;
background: #f5de25;
}
</style>
<article class="three_columns">
<div class="top">上</div>
<div class="middle">
<h1>table布局</h1>
</div>
<div class="bottom">下</div>
</article>
</section>
<!-- 第四种布局：grid -->
<section class="layout grid">
<style type="text/css">
.layout.grid{
margin-left: 20px;
height: 100%;
}
.layout.grid .three_columns{
width: 200px;
height: 100%;
display: grid;
grid-template-rows: 200px auto 200px;
grid-template-columns: 200px;
}
.layout.grid .top{
height: 200px;
background: #90d9f7;
}
.layout.grid .middle{
background: pink;
overflow: auto;
}
.layout.grid .bottom{
height: 200px;
background: #f5de25;
}
</style>
<article class="three_columns">
<div class="top">上</div>
<div class="middle">
<h1>grid布局</h1>
</div>
<div class="bottom">下</div>
</article>
</section>
</body>
</html>
下边图片是代码运行的效果图，大家可以运行代码试试看。
自己总结的，有不对的地方欢迎大家指正！
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