property top does not exist for this profile

what does that mean?

[FourDegreez]

When I validate my CSS against CSS1, I get a lot of warnings saying: "property top does not exist for this profile, but is validated conforming to another profile"

What does that mean? I'm trying to figure out why my absolute positioning causes everything to be invisible on Mozilla. Has anyone had this problem? My CSS validates for CSS2 without warnings.

[BlobFisk]

Values like top: and left: are CSS2 style rules and are not part of the CSS1 specifications.

This will cause your CSS to fail CSS1 validation, but pass CSS2 validation.

You Mozilla problem would require some more information, but you can have CSS which validates but still has browser issues.

[FourDegreez]

I discovered that my Mozilla problem was that I had "overflow: auto" on my body tag, which somehow cascaded into massive rendering problems.