Container not expanding?

[dbworm]

With the following code, the container is expanded with IE6 but not with Firefox. What's wrong?

CSS
 #container {
  top: 0;
  margin: 0;
  border: 1px dotted;
  margin-left: auto;
  margin-right: auto;
  width: 760px;
  }

 #logo {
  border: 1px red solid;
  background: silver;
  height: 40px;
  width: 300px;
  float: left;
 }

 #rotator {
  border: 1px red solid;
  background: cornsilk;
  height: 40px;
  width: 300px;
  float: right;
 }

HTML

<div id="container">

<div id="logo"></div>
<div id="rotator"></div>

</div> <!-- container -->

Thanks, Dan

[The New Guy]

Its just the good old clearing bug.

 <div id="container">
 
 <div id="logo"></div>
 <div id="rotator"></div>
 <div style="clear: both"></div>
 
 </div>

[dbworm]

Its just the good old clearing bug.

 <div id="container">
 
 <div id="logo"></div>
 <div id="rotator"></div>
 <div style="clear: both"></div>
 
 </div>

Aaargh! yes, thank you.
Dan