CODEWITHSUNDEEP
cssinternet-explorer
dl__
dl__

Reputation: 4610

IE CSS positioning problem

I have some markup for a popup menu that works in firefox but not IE. The problem is that the popup pops under other elements and is impervious to the z-index value. A complete runnable example is below.

Now, I know that one fix is not to position the divs as relative, but I can't do that because, in the real code, I'm using scriptaculous and it adds the "position: relative" to do what it needs to do. Besides, I don't think it should matter.

Is there another fix that would make this code work for both IE and firefox?

Example: 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head><title>IE Problem</title>
<style type="text/css">
.mydiv{
  position: relative;
  background: yellow;
  border: solid 1px black;
}
table{background:black;} 
td.menu{background:lightblue}
table.menu
{
  position:absolute;
  visibility:hidden;
  z-index:999;
}
</style>
<script type="text/javascript">
function showmenu(elmnt){
   document.getElementById(elmnt).style.visibility="visible";
}
function hidemenu(elmnt){
   document.getElementById(elmnt).style.visibility="hidden";
}
</script>
</head>

<body>
<div class="mydiv" onmouseover="showmenu('one')" onmouseout="hidemenu('one')">

   <a href="#">div one</a><br />
   <table class="menu" id="one" width="120">
     <tr><td class="menu"><a href="#">Item 1</a></td></tr>
     <tr><td class="menu"><a href="#">Item 2</a></td></tr>
   </table>

</div>
<div class="mydiv" onmouseover="showmenu('two')" onmouseout="hidemenu('two')">

   <a href="#">div two</a><br />
   <table class="menu" id="two" width="120">
     <tr><td class="menu"><a href="#">Item 1</a></td></tr>
     <tr><td class="menu"><a href="#">Item 2</a></td></tr>
   </table>

</div>  
</body>

</html>

Upvotes: 1

Views: 2315

Answers (2)

Greg
Greg

Reputation: 321844

The z-index is scoped to within the parent if the parent has position: relative or position: absolute.

The solution for your example is to add style="z-index: 2;" to the first "mydiv" and z-index: 1; to the second.

Upvotes: 4

Scott Evernden
Scott Evernden

Reputation: 39986

If you move the TABLEs outside of the DIVs it works. Hopefully this satisfies your needs? I think I would get confused too if I was a DIV and you asked me to Z-order something I am containing above me.

Upvotes: 2

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