css布局篇

<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="v.js"></script>
</head>
<style>
*{
margin: 0;padding:0;
list-style: none;
}
html,body{
100%;
height: 100%;
}
header{
100%;
height:10%;
background:yellow;
}
section{
80%;
margin: 0 auto;
background:red;
}
footer{
100%;
height: 60px;
background:blue;
}
.h_content{
80%;
margin: 0 auto;
background:#ccc;
text-align: center;
display: table;
height: 100%;
}
.h_content ul{
text-align: center;
60%;
background: #aaa;
height: 30px;
display: table-cell;
vertical-align: middle;
}
.h_content li{
display: inline-block;
30px;
background:purple;
margin-right: 15px;
height: 30px;
}
.s_content{
position: relative;
overflow: hidden;
color: #fff;
font-size: 20px;
text-align: center;
line-height: 200px;
}
.c_l{
position: absolute;
200px;
top: 0;
left: 0;
height: 200px;
background: #ffaacc;
}
.c_m{
position: absolute;
200px;
top: 0;
left: 200px;
background: #aaa;
margin-bottom: -2000px;
padding-bottom: 2000px;
word-wrap: break-word;
　　 word-break: break-all;
/*文字换行*/
line-height: 30px;
}
.c_r{
background: #aaccdd;
margin-left: 400px;
height: 200px;
}
.c_l2{
300px;
height: 200px;
background: #ddaacc;
}
.c_r2{
background: #00ff00;
margin-left: 300px;
height: 200px;
margin-top: -200px;
}
.c_l3{
float: left;
background: #aabbcc;
height: 200px;
150px;
}
.c_m3{
height: 200px;
background: #ccbbaa;
margin: 0 150px;
}
.c_r3{
float: right;
background: #aabbcc;
height: 200px;
150px;
}
table{
100%;
border: none;
text-align: center;
vertical-align: middle;
color: #fff;
font-size: 20px;
}
table td:nth-child(1){
background: #f0f;
}
table td:nth-child(3){
background: #f0f;
}
table td:nth-child(2){
600px;
height: 200px;
background: #ddaacc;
}
</style>
<body>
<header>
<div class="h_content">
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>1</li>
<li>2</li>
</ul>
</div>
</header>
<section>

<div class="s_content">
<div class="c_l">左侧宽高固定</div>
<div class="c_m">中间不设置高度，通过margin，padding与左右元素对齐</div>
<div class="c_r">右侧宽度占满剩余的空间</div>
</div>

<div class="s_content">
<div class="c_l2">左侧宽高固定</div>
<div class="c_r2">右侧宽度占满剩余的空间</div>
</div>

<div class="s_content">
<div class="c_l3">左侧宽度固定</div>
<div class="c_r3">右侧宽度固定</div>
<div class="c_m3">中间宽度不固定</div>
</div>
<table cellspacing="0">
<tr>
<td>左侧自适应</td>
<td>中间宽度固定</td>
<td>右侧自适应</td>
</tr>
</table>
</section>
<footer></footer>
</body>
</html>