<!DOCTYPE html>
<html>
<head>
<title>两列定宽中间自适应布局</title>
<meta charset="utf-8">
</head>
<body>
<h1>1、流体布局</h1>
<div class="left"></div>
<div class="right"></div>
<div class="center"></div>
<style type="text/css">
.left{
width: 200px;
height: 100px;
background-color: red;
float: left;
}
.right{
width: 100px;
height: 100px;
background-color: green;
float: right;
}
.center{
height: 100px;
background-color: yellow;
margin-left: 200px;
margin-right: 100px;
}
</style>
<h1>2、BFC三栏布局</h1>
<p>BFC规则，BFC区域不会与浮动元素重叠，利用这一点进行三列布局</p>
<p>
触发条件：
1、body 根元素
2、浮动元素：float 除 none 以外的值
3、绝对定位元素：position (absolute、fixed)
4、display 为 inline-block、table-cells、flex
5、overflow 除了 visible 以外的值 (hidden、auto、scroll)
</p>
<div class="BFCleft"></div>
<div class="BFCright"></div>
<div class="BFCcenter"></div>
<style type="text/css">
.BFCleft{
width: 300px;
height: 200px;
background-color: blue;
float: left;
margin-right: 10px;
}
.BFCright{
width: 300px;
height: 200px;
float: right;
background-color: yellow;
margin-left: 10px;
}
.BFCcenter{
height: 200px;
background-color: green;
overflow: hidden;
}
</style>
<h1>3、双飞翼布局SFY</h1>
<p>利用的是浮动元素 margin 负值的应用</p>
<div class="container">
<div class="SFYcenter"></div>
</div>
<div class="SFYleft"></div>
<div class="SFYright"></div>
<style type="text/css">
.container{
width: 100%;
float: left;
}
.SFYcenter{
height: 100px;
background-color: red;
margin-left: 210px;
margin-right: 110px;
}
.SFYleft{
float: left;
width: 200px;
height: 100px;
background-color: green;
margin-left: -100%;
}
.SFYright{
float: right;
width: 100px;
height: 100px;
background-color: blue;
margin-left: -200px;
}
</style>
<h1>4、圣杯布局SB</h1>
<p>圣杯布局有包裹div且全部左浮动</p>
<div class="wrap">
<div class="SBcenter"></div>
<div class="SBleft"></div>
<div class="SBright"></div>
</div>
<style type="text/css">
.wrap{
margin-left: 120px;
margin-right: 220px;
}
.SBcenter{
float: left;
height: 100px;
background-color: blue;
width: 100%;/*才会展示出来*/
}
.SBleft{
float: left;
width: 100px;
height: 100px;
background-color: yellow;
margin-left: -100%;
position: relative;
left: -120px;
}
.SBright{
float: left;
width: 200px;
height: 100px;
background-color: red;
margin-left: -200px;
position: relative;
right: -220px;
}
</style>
<div style="clear: both;"></div>
<h1>5、Flex布局</h1>
<div class="FlexWrap">
<div class="Flexcenter"></div>
<div class="Flexleft"></div>
<div class="Flexright"></div>
</div>
<style type="text/css">
.FlexWrap{
display: flex;
}
.Flexcenter{
flex-grow: 1;
height: 100px;
background-color: blue;
}
.Flexleft{
order: -1;
flex: 0 1 200px;
background-color: red;
height: 100px;
margin-right: 10px;
}
.Flexright{
flex: 0 1 100px;
background-color: green;
height: 100px;
margin-left: 10px;
}
</style>
<h1>6、绝对定位布局position: absolute</h1>
<div class="PAWrap">
<div class="PAcenter"></div>
<div class="PAleft"></div>
<div class="PAright"></div>
</div>
<style type="text/css">
.PAWrap{
position: relative;
}
.PAcenter{
height: 200px;
margin: 0 160px 0 210px;
background-color: red;
}
.PAleft{
width: 200px;
height: 200px;
background-color: yellow;
position: absolute;
left: 0;
top: 0;
}
.PAright{
width: 150px;
height: 200px;
background-color: green;
position: absolute;
top: 0;
right: 0;
}
</style>
<h3>7、table布局</h3>
<div id="tablewrap">
<div id="left_table"></div>
<div id="tablexmain"></div>
<div id="right_table"></div>
</div>
<style type="text/css">
#tablewrap{
display: table;
width:100%;
}
#tablemain,#left_table,#right_table{
display: table-cell;
}
#tablexmain{
background-color: blue;
height: 300px;
}
#left_table{
height: 300px;
width: 200px;
background-color: red;
}
#right_table{
height: 300px;
width: 100px;
background-color: green;
}
/*缺点无法设置栏间距*/
</style>
</body>
</html>
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