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 CtrlASD.com
</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 CtrlASD.com
</footer>
</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;
}
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>