CSS 2.1 errors: not a known property name

Question

Here is my code, I got it from an AJAX sample:

body, div, p, h1, h2, h3, h4, ul, li, table
{
    margin:0;
    padding:0;
    border:none;
}

body
{
    backgrou         


        

Answer 1

I realize that this response is a little late, but someone else may find this information useful.

To make the filter tag warning go away in VS2010 (as opposed to just ignoring it), close VS2010 and edit the following file: C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\Packages\1033\schemas\CSS\css30.xml

You need to change the filter property from enum to composite.

Around line 387, you should find the following text:

Change it to:

Then restart VS2010.