html运行实例（eg_csse_margin-top_percent）-搜寻教程库

代码示例：（标识：eg_csse_margin-top_percent）

<html>
<head>
<style type="text/css">
p.topmargin
{
margin-top: 25%
}
</style>
</head>
<body>

<p>This is a paragraph with no margin specified</p>
<p class="topmargin">This is a paragraph with a specified top margin</p>

</body>
</html>