看不到效果
怎么看不到效果啊
4 回答
说明还是哪儿有点小毛病吧，下面是完整的
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
.box1{ background-color:red; height:300px; position:relative; top:50px; left:30px;}
.box2{ background-color:green; height:100px;}
.box3{ background-color:blue; height:200px;}
</style>
</head>
<body>
<div class="box1">box1</div>
<div class="box2">box2</div>
<div class="box3">box3</div>
</body>
</html>
<style>
.box1{ background-color:red; height:300px; position:relative;top:50px; left:30px;}
.box2{ background-color:green; height:100px;}
.box3{ background-color:blue; height:200px;}
</style>
</head>
<body>
<div class="box1">box1</div>
<div class="box2">box2</div>
<div class="box3">box3</div>
</body>
把你的抄了一遍，有效果啊！
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