<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style>
#div1
{
width: 100px;
height: 100px;
border: 1px solid blue;
float: left; /* 设置元素浮动 */
}
p
{
background-color: red;
clear: both;/* 清除元素浮动 */
}
#div2
{
width: 100px;
height: 100px;
border: 1px solid aqua;
margin: 0 auto; /* 使层本身在父元素内中居中 */
}
#dvhead
{
height: 150px;
background-color: blue;
text-align: center;
}
#dvContent
{
background-color: yellow;
height: 300px;
}
#dvbottom
{
background-color:orange;
height: 50px;
}
#dvleft
{
width: 30%;
height: 100%;
background-color: red;
float: left;
}
#dvcenter
{
background-color: lime;
width: 70%;
height: 100%;
float: left;
}
</style>
</head>
<body>
<div id="div1"></div>
<p>这是一个P标签</p>
<div id="div2"></div>
<br>
<div id="dvhead">
头部
</div>
<div id="dvContent">
<div id="dvleft">
</div>
<div id="dvcenter">
</div>
</div>
<div id="dvbottom">
</div>
</body>
</html>
