http://www.jb51.net/html/200612/78/5638.htm

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  1.   

    我用到了你们说的那些,其中也包括filter: alpha(opacity=0);  但依然只在ff里起作用  ie里不行  不知道为什么
      

  2.   

    解决了  只给那个div加了宽度就好了  谁能讲下为什么?<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
    <HTML>
    <HEAD>
    <STYLE>
    .opac0{opacity: .0;filter: alpha(opacity=0);}
    .opac1{opacity: .2;filter: alpha(opacity=20);}
    .opac2{opacity: .4;filter: alpha(opacity=40);}
    .opac3{opacity: .6;filter: alpha(opacity=60);}
    .opac4{opacity: .8;filter: alpha(opacity=80);}
    #abc{
    width: 100%;
    }
    </STYLE>
    <script>
    var abc123=null;
    var i=0;window.onload=function(){ 
    abc123=document.getElementById("abc");
    }function setClass(xClass){
    if(xClass<5){
    abc123.className="opac"+xClass;
    setTimeout("setClass("+(xClass+1)+")",300);
    }else{
    abc123.className="";
    }
    }
    </script>
    <TITLE> New Document </TITLE>
    </HEAD>
    <BODY>
    <input type=button onclick=setClass(0) value="submit">
    <div id="abc" class="opac0">abc</div>
    </BODY>
    </HTML>