使用zindex屬性讓控制元件顯示在最上層
阿新 • • 發佈:2018-12-25
設定示例:
<div id="a1" style="position:absolute;left:100px;top:100px;width:100px;height:100px;
background-color:#ddeeff;z-index:1">div>
<div id="a2" style="position:absolute;left:150px;top:130px;width:100px;height:100px;
background-color:#eeffdd;z-index:2">div>
<div id="a3" style="position:absolute;left:200px;top:160px;width:100px;height:100px;
background-color:#ffddee;z-index:3" >div>
DEMO:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>title>
<script type="text/javascript">
function $(obj){
return document.getElementById(obj);
}
function change(n){
for (var i=1;i< 4;i++){
if(n==i){
$("a"+i).style.zIndex="100";
}else{
$("a"+i).style.zIndex="0";
}
}
}
script>
head>
<body>
<div id="a1" style="position:absolute;left:100px;top:100px;width:100px;height:100px;
background-color:#ddeeff;z-index:1" onclick="change('1')" >div>
<div id="a2" style="position:absolute;left:150px;top:130px;width:100px;height:100px;
background-color:#eeffdd;z-index:2" onclick="change('2')">div>
<div id="a3" style="position:absolute;left:200px;top:160px;width:100px;height:100px;
background-color:#ffddee;z-index:3" onclick="change('3')">div>
body>
html>
原文連結:
http://hi.baidu.com/j_z_/blog/item/458dd81b98821dd0ac6e756a.html