[Solved] Why does this css not validate

There are no errors in that stylesheet. There are a number of warnings.

Warnings indicate something that MIGHT be a problem under some circumstances. That particular warning is saying that the background colour in one context is the same as the foreground colour in another. If somehow the html structure allowed the two rules to be applicable at the same time, then the text wouldn't be visible. The CSS validator isn't too clever about valid HTML structure and it is not looking at your page - so it can't tell if the circumstance does or doesn't occur - so it just warns you.

Generally warnings are nothing to worry about. Although in your case I'd fix the font-family names.

It is possible to construct a validator string for Firefox so that you don't see the warnings.

http://jigsaw.w3.org/css-validator/validator?profile=css21&warning=0&uri=


thank you for your explanation

Edit/ Didn't see Chris sneak in ahead, and the point about about the url arguments is a good one I've always customised mine from back when it was default validating to CSS2 rather than 21 and throwing errors on display:inline-block

It more acurately says:
"Same colors for color and background-color in two contexts .fotoblok and .item-list .icon"

Which is from system.css and then there are a few for another stylesheet.

They are only cautionary warnings and 'context' is the operative word The validator is just worried that there might be conflicts between backgrounds and foreground colours, it's for you to adjudge whether things are ok or not state the colours/backgrounds again if they can be inherited through.

Bear in mind that the jigsaw validator has limitations and can't actually see that these might not be problems just as it likes to throw out a warning when it doesn't find colour and background property pairs, but it can't tell that a parent element is actually taking care of the background and that a user wouldn't be likely able to override a specific class or ID that you had used.

Overall validated stylesheets is of far less importance than validated markup, I don't particularly care about validating stylesheets, but if I do, and find any problems they are fairly easily dealt with.

Also thanks for yoyr explanation.

Well i validate my css mostly because sometimes it looks different in FF than IE because of a forgotten background-color of an element.
And ofcourse I take pleasure in knowing that everything is validated.