CSS代码问题

html-css017

CSS代码问题,第1张

<style>

    .style1,.style2{

        height: 32px

        width: 85px

        border:1px solid #e6e6e6

    }

    .style1{color: #878787}

    .style2{

        color: #fff 

        background-color: #878787

        width: 100px

    }

</style>

<td class="style1">无弹性</td>

<td class="style2">轻微弹性</td>

把style1换成style2就行了

<!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/htmlcharset=gb2312" />

<title>交叉重叠层</title>

<style type="text/css">

html{ color:#f00}

#top{width:200pxheight:300pxbackground-color:#fffposition:absolutetop:50pxleft:50px}

#bottom{width:300pxheight:400pxbackground-color:#000z-index:-100position:absolutetop:0left:0}

</style>

</head>

<body>

<div id="top">上面层</div>

<div id="bottom">下面层</div>

</body>

</html>

可以用z-index来定义层的上下关系