I have an iframe on a Wordpress sidebar, and the border-radius code in the iframe looks something like this:

html {
border-bottom: 2px solid #ccc;
border-radius: 5px;
-moz-border-radius: 5px;
-webkit-border-radius 5px;
}

The code renders radius in Chrome, but not in Firefox, and Internet Explorer. The website is currently at http://evelyn-lin.net/ (!!! some xxx content !!!) (iframe is over 200 list of websites on the right hand side).

Does anybody have an idea what might be going on?

Thank you.