网站常常以多列显示内容（就像杂志和报纸）。
使用 <div> 元素的 HTML 布局
注释：<div> 元素常用作布局工具，因为能够轻松地通过 CSS 对其进行定位。
这个例子使用了四个 <div> 元素来创建多列布局：
实例
<body>
<div id="header">
<h1>City Gallery</h1>
</div>
<div id="nav">
London<br>
Paris<br>
Tokyo<br>
</div>
<div id="section">
<h1>London</h1>
<p>
London is the capital city of England. It is the most populous city in the United Kingdom,
with a metropolitan area of over 13 million inhabitants.
</p>
<p>
Standing on the River Thames, London has been a major settlement for two millennia,
its history going back to its founding by the Romans, who named it Londinium.
</p>
</div>
<div id="footer">
Copyright W3School.com.cn
</div>
</body>
亲自试一试
CSS：
<style>
#header {
background-color:black;
color:white;
text-align:center;
padding:5px;
}
#nav {
line-height:30px;
background-color:#eeeeee;
height:300px;
width:100px;
float:left;
padding:5px;
}
#section {
width:350px;
float:left;
padding:10px;
}
#footer {
background-color:black;
color:white;
clear:both;
text-align:center;
padding:5px;
}
</style>
使用 HTML5 的网站布局
HTML5 提供的新语义元素定义了网页的不同部分：
HTML5 语义元素
header
定义文档或节的页眉
nav
定义导航链接的容器
section
定义文档中的节
article
定义独立的自包含文章
aside
定义内容之外的内容（比如侧栏）
footer
定义文档或节的页脚
details
定义额外的细节
summary
定义 details 元素的标题
这个例子使用 <header>, <nav>, <section>, 以及 <footer> 来创建多列布局：
实例
<body>
<header>
<h1>City Gallery</h1>
</header>
<nav>
London<br>
Paris<br>
Tokyo<br>
</nav>
<section>
<h1>London</h1>
<p>
London is the capital city of England. It is the most populous city in the United Kingdom,
with a metropolitan area of over 13 million inhabitants.
</p>
<p>
Standing on the River Thames, London has been a major settlement for two millennia,
its history going back to its founding by the Romans, who named it Londinium.
</p>
</section>
<footer>
Copyright W3School.com.cn
</footer>
</body>
亲自试一试
CSS
<style>
header {
background-color:black;
color:white;
text-align:center;
padding:5px;
}
nav {
line-height:30px;
background-color:#eeeeee;
height:300px;
width:100px;
float:left;
padding:5px;
}
section {
width:350px;
float:left;
padding:10px;
}
footer {
background-color:black;
color:white;
clear:both;
text-align:center;
padding:5px;
}
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