CSS 简单的两个固定宽度的列布局
示例
一个简单的两列布局由两个固定宽度的浮动元素组成。请注意，在此示例中，边栏和内容区域的高度不同。这是使用浮点数的多列布局的棘手部分之一，并且需要变通办法以使多个列看起来都具有相同的高度。
HTML：
<div class="wrapper"> <div class="sidebar"> <h2>Sidebar</h2> <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer nec odio.</p> </div> <div class="content"> <h1>Content</h1> <p>Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Curabitur sodales ligula in libero. Sed dignissim lacinia nunc. Curabitur tortor. Pellentesque nibh. Aenean quam. In scelerisque sem at dolor. Maecenas mattis. Sed convallis tristique sem. Proin ut ligula vel nunc egestas porttitor. Morbi lectus risus, iaculis vel, suscipit quis, luctus non, massa. Fusce ac turpis quis ligula lacinia aliquet. </p> </div> </div>
CSS：
.wrapper {
width:600px;
padding:20px;
background-color:pink;
/* Floated elements don't use any height. Adding "overflow:hidden;" forces the
parent element to expand to contain its floated children. */
overflow:hidden;
}
.sidebar {
width:150px;
float:left;
background-color:blue;
}
.content {
width:450px;
float:right;
background-color:yellow;
}