HTML 布局
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>
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>
CSS
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; }使用表格的 HTML 布局
注释:<table> 元素不是作为布局工具而设计的。
<table> 元素的作用是显示表格化的数据。
使用 <table> 元素能够取得布局效果,因为能够通过 CSS 设置表格元素的样式:
实例
<body><table class="lamp"><tr> <th> <img src="/images/lamp.jpg" alt="Note" style="height:32px;width:32px"> </th> <td> The table element was not designed to be a layout tool. </td></tr></table></body>
CSS
<style>table.lamp {    width:100%;    border:1px solid #d4d4d4;}table.lamp th, td {    padding:10px;}table.lamp td {    width:40px;}</style>