CSS Errors in FireFox Web Developer

[Sweet ZouZou]

I just figured out why the "px" wasn't showing up. In admin/catalog/layout settings, I did not add "px" to the sizes. My bad!

[Sweet ZouZou]

I have 2 more parsing warnings left on the main page. One is "filter" and the other "khtml-opacity". I searched the web and found this reply.

Those warnings are nothing to worry about. Filter is an IE only CSS property. -khtml-opacity is another proprietary CSS extension. Firefox supports the standard Opacity property.

Should I ignore these CSS errors/warnings and move on to another page?

Thx Sweet