Issue with browsers that support corners in css3 and rounding corners individually

[Chiggins]

In FF4 and Chrome the plugin seems to add extra space to the top of a div element that has the top corners set separately using tl and tr. However, it works fine using just top. Also, if the page is looked at in IE8, it works as expected.

Example code:

This adds an extra row of the height of the corners to the top of the div.

This works but will not allow for separate colors to be applied behind the corner.

Since the CSS cornering shows the content behind the div correctly, it is not necessary to change the colors individually at the top of the div, however I filed this issue because it still is not what is expected.