Chrome CSS Menu and VisualStudio .aspx

[edikaufmann]

Hi,
anybody out there running subject combination?

I do not get the menu bar drawn. However I am able to use the (written) hyperlinks correctly.

When opening the 'chromestyle.css' sheet VisualStudio shows an error on:

'content: "." error: "is NOT a known CSS property name"

thanks for any feedback
ed

part of 'chromestyle.css'
#chromemenu:after{ /*Add margin between menu and rest of content in Firefox*/
content: ".";
display: block;
height: 0;
clear: both;
visibility: hidden;
}