I noticed that Web-kit browsers like Chrome and Safari (Windows) tend to round em values to nearest pixel, while Firefox, IE, ? Opera ? can use sub-pixel values. This is nor
I wouldn't suggest em. I'd use px (pixels). Here is an EM to PX converter: http://convert-to.com/446/pixels-px-to-em-conversion.html
PX is the same across all browsers (as far as I know)