复制代码代码如下:
<!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">
/*弹出层的STYLE*/
html,body {height:100%; margin:0px; font-size:12px;}
.mydiv {
background-color: #ff6;
border: 1px solid #f90;
text-align: center;
line-height: 40px;
font-size: 12px;
font-weight: bold;
z-index:99;
width: 300px;
height: 120px;
left:50%;/*FF IE7*/
top: 50%;/*FF IE7*/
margin-left:-150px!important;/*FF IE7 该值为本身宽的一半 */
margin-top:-60px!important;/*FF IE7 该值为本身高的一半*/
margin-top:0px;
position:fixed!important;/*FF IE7*/
position:absolute;/*IE6*/
_top: expression(eval(document.compatMode &&
document.compatMode==CSS1Compat) ?
documentElement.scrollTop + (document.documentElement.clientHeight-this.offsetHeight)/2 :/*IE6*/
document.body.scrollTop + (document.body.clientHeight - this.clientHeight)/2);/*IE5 IE5.5*/
}
.bg {
background-color: #ccc;
width: 100%;
height: 100%;
left:0;
top:0;/*FF IE7*/
filter:alpha(opacity=50);/*IE*/
opacity:0.5;/*FF*/
z-index:1;
position:fixed!important;/*FF IE7*/
position:absolute;/*IE6*/
_top: expression(eval(document.compatMode &&
document.compatMode==CSS1Compat) ?
documentElement.scrollTop + (document.documentElement.clientHeight-this.offsetHeight)/2 :/*IE6*/
document.body.scrollTop + (document.body.clientHeight - this.clientHeight)/2);/*IE5 IE5.5*/
}
/*The END*/
</style>
<script type="text/javascript">
function showDiv(){
document.getElementById(popDiv).style.display=block;
document.getElementById(bg).style.display=block;
}
function closeDiv(){
document.getElementById(popDiv).style.display=none;
document.getElementById(bg).style.display=none;
}
</script>
</head>
<body>
<div id="popDiv" class="mydiv">标题<br/>你懂得<br/>
<a href="javascript：closeDiv()">关闭窗口</a></div>
<div id="bg" class="bg"></div>
<div>
<input type="Submit" name="" value="显示层" onclick="javascript：showDiv()" />
</div>
</body>
</html>
附加一个好看的样式
复制代码代码如下:
<html>
<head><title></title>
<style>
.mesWindowTop {
font-size: 12px;
font-weight: bold;
text-align: left;
}
.mesWindowContent {
font-size: 12px;
}
.mesWindow {
background: none repeat scroll 0 0 #FFFFFF;
border: 1px solid #666666;
}
</style>
</head>
<body>
<div id="mesWindow" class="mesWindow"><div class="mesWindowTop"><table width="100%" height="100%"><tbody><tr><td>窗口标题</td><td><input type="button" value="关闭" class="close" title="关闭窗口" onclick="closeWindow();"></td></tr></tbody></table></div><div id="mesWindowContent" class="mesWindowContent"><div>消息正文</div></div><div class="mesWindowBottom"></div></div>
</body>
</html>
![HTMLimg标签的alt属性和title属性使用介绍]("image.gif)
