小编给大家分享一下css如何实现可收缩的上下左右布局，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
首先我们来看一下实现效果：
代码实现：
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<meta http-equiv="X-UA-Compatible" content="edge"/>
<title>布局</title>
<link href="https://cdn.bootcdn.net/ajax/libs/font-awesome/5.13.0/css/all.min.css" rel="stylesheet">
<style>
* {
margin: 0;
padding: 0;
}
html, body {
width: 100%;
height: 100%;
}
.left {
width: 220px;
height: 100%;
}
.center {
position: absolute;
top: 0;
left: 220px;
right: 200px;
bottom: 0;
background-color: grey;
}
.right {
position: absolute;
top: 0;
right: 0;
width: 200px;
height: 100%;
}
.top {
width: 100%;
height: 70px;
line-height: 70px;
}
.middle {
position: absolute;
top: 70px;
bottom: 40px;
width: 100%;
text-align: center;
}
.bottom {
position: absolute;
bottom: 0;
width: 100%;
line-height: 40px; /*行高与高度相等，内容垂直居中*/
text-align: center;
}
.top .bl_move {
height: 2px;
width: 100%;
bottom: 0;
cursor: col-resize;
position: relative;
background-color: lightgray;
z-index: 2;
line-height: 0;
font-size: 12px;
}
.top .bl_fold {
width: 36px;
height: 12px;
position: absolute;
cursor: pointer;
z-index: 3;
opacity: .8;
filter: alpha(opacity=80);
text-decoration: none;
background: #e5e5e5;
color: #666;
text-align: center;
margin-top: -0px;
left: 50%;
right: -12px;
line-height: 36px;
border-radius: 0 3.01px 3.01px 0;
}
.top .bl_fold i {
position: relative;
top: -15px;
}
.left .bl_move {
width: 2px;
height: 100%;
cursor: col-resize;
position: relative;
background-color: lightgray;
z-index: 2;
font-size: 12px;
float: left;
}
.left .bl_fold {
width: 12px;
height: 36px;
position: absolute;
cursor: pointer;
float: left;
z-index: 3;
opacity: .8;
filter: alpha(opacity=80);
text-decoration: none;
background: #e5e5e5;
color: #666;
text-align: center;
vertical-align: middle;
top: 50%;
line-height: 36px;
border-radius: 0 3.01px 3.01px 0;
}
.left .bl_fold i {
position: relative;
}
.right .bl_move {
width: 2px;
height: 100%;
cursor: col-resize;
position: relative;
background-color: lightgray;
z-index: 2;
font-size: 12px;
float: right;
}
.right .bl_fold {
width: 12px;
height: 36px;
position: absolute;
cursor: pointer;
float: left;
z-index: 3;
opacity: .8;
filter: alpha(opacity=80);
text-decoration: none;
background: #e5e5e5;
color: #666;
text-align: center;
vertical-align: middle;
top: 50%;
left: -12px;
line-height: 36px;
border-radius: 0 3.01px 3.01px 0;
}
.right .bl_fold i {
position: relative;
}
.bottom .bl_move {
height: 2px;
width: 100%;
bottom: 0;
cursor: col-resize;
position: relative;
background-color: lightgray;
z-index: 2;
line-height: 0;
font-size: 12px;
}
.bottom .bl_fold {
width: 36px;
height: 12px;
position: absolute;
cursor: pointer;
z-index: 3;
opacity: .8;
filter: alpha(opacity=80);
text-decoration: none;
background: #e5e5e5;
color: #666;
text-align: center;
margin-top: -0px;
left: 50%;
top: -12px;
line-height: 36px;
border-radius: 0 3.01px 3.01px 0;
}
.bottom .bl_fold i {
position: relative;
top: -15px;
}
</style>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
</head>
<body>
<div class="top">
<div class="panel-content">
内容内容内容内容内容内容内容内容
<i class="fa fa-sort-desc" aria-hidden="true"></i>
<i class="fa fa-sort-desc" aria-hidden="true"></i>
</div>
<div class="bl_move">
<a href="javascript:;" title="点击展开" class="bl_fold">
<i class="fa fa-caret-top" aria-hidden="true"></i>
</a>
</div>
</div>
<div class="middle">
<div class="left">
<div class="panel-content" style="float: left;width: calc(100% - 2px)">
内容内容内容内容内容内容内容内容
<i class="fa fa-sort-desc" aria-hidden="true"></i>
<i class="fa fa-sort-desc" aria-hidden="true"></i>
</div>
<div class="bl_move">
<a href="javascript:;" title="点击展开" class="bl_fold">
<i class="fa fa-caret-up" aria-hidden="true"></i>
</a>
</div>
</div>
<div class="center">
</div>
<div class="right">
<div class="panel-content" style="float: right;width: calc(100% - 2px)">
内容内容内容内容内容内容内容内容
<i class="fa fa-sort-desc" aria-hidden="true"></i>
<i class="fa fa-sort-desc" aria-hidden="true"></i>
</div>
<div class="bl_move">
<a href="javascript:;" title="点击展开" class="bl_fold">
<i class="fa fa-caret-right" aria-hidden="true"></i>
</a>
</div>
</div>
</div>
<div class="bottom">
<div class="bl_move">
<a href="javascript:;" title="点击展开" class="bl_fold">
<i class="fa fa-caret-down" aria-hidden="true"></i>
</a>
</div>
<div class="panel-content" style="height: calc(100% - 2px)">
Copyright © 2018 XXX公司版权所有
</div>
</div>
<script>
$(function () {
$(".top .bl_fold").on('click', function () {
var visible = $('.top .panel-content').is(":visible");
if (visible) {
$('.top .panel-content').hide();
$(".middle").css("top", '0px');
} else {
$('.top .panel-content').show();
$(".middle").css("top", '70px');
}
});
$(".left .bl_fold").on('click', function () {
var visible = $('.left .panel-content').is(":visible");
if (visible) {
$('.left .panel-content').hide();
$(".center").css("left", '2px');
} else {
$('.left .panel-content').show();
$(".center").css("left", '220px');
}
});
$(".right .bl_fold").on('click', function () {
var visible = $('.right .panel-content').is(":visible");
if (visible) {
$('.right .panel-content').hide();
$(".center").css("right", '2px');
} else {
$('.right .panel-content').show();
$(".center").css("right", '200px');
}
});
$(".bottom .bl_fold").on('click', function () {
var visible = $('.bottom .panel-content').is(":visible");
if (visible) {
$('.bottom .panel-content').hide();
$(".middle").css("bottom", '2px');
} else {
$('.bottom .panel-content').show();
$(".middle").css("bottom", '40px');
}
});
})
</script>
</body>
</html>以上是css如何实现可收缩的上下左右布局的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！
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