<!DOCTYPE html> |
<html> |
<head> |
<meta charset= " utf-8" > |
<meta name= "author" content= "http://www.jb51.net/" /> |
<title>CSS如何实现弹出一个全屏灰黑色透明遮罩效果-脚本之家</title> |
<style type= "text/css" > |
* |
{ |
margin:0px; |
padding:0px; |
} |
.zhezhao |
{ |
width:100%; |
height:100%; |
background-color: #000; |
filter:alpha(opacity=50); |
-moz-opacity:0.5; |
opacity:0.5; |
position:absolute; |
left:0px; |
top:0px; |
display:none; |
z-index:1000; |
} |
.login |
{ |
width:280px; |
height:180px; |
position:absolute; |
top:200px; |
left:50%; |
background-color: #000; |
margin-left:-140px; |
display:none; |
z-index:1500; |
} |
.content |
{ |
margin-top:50px; |
color:red; |
line-height:200px; |
height:200px; |
text-align:center; |
} |
</style> |
<script type= "text/javascript" > |
window.onload= function () |
{ |
var zhezhao=document.getElementById( "zhezhao" ); |
var login=document.getElementById( "login" ); |
var bt=document.getElementById( "bt" ); |
var btclose=document.getElementById( "btclose" ); |
|
bt.onclick= function () |
{ |
zhezhao.style.display= "block" ; |
login.style.display= "block" ; |
} |
btclose.onclick= function () |
{ |
zhezhao.style.display= "none" ; |
login.style.display= "none" ; |
} |
} |
</script> |
</head> |
<body> |
<div class= "zhezhao" id= "zhezhao" ></div> |
<div class= "login" id= "login" ><button id= "btclose" >点击关闭</button></div> |
<div class= "content" >脚本之家欢迎您,<button id= "bt" >点击弹出遮罩</button></div> |
</body> |
</html> |