font-family string can not and must not contain parentheses ( ), brackets [ ], braces { }, exclamation marks !, etc.

Your browser passes this test if each and all of the following 16 lines are rendered with Times New Roman and not Verdana

This 1st line should be using Times New Roman and not Verdana

This 2nd line should be using Times New Roman and not Verdana

This 3rd line should be using Times New Roman and not Verdana

This 4th line should be using Times New Roman and not Verdana

This 5th line should be using Times New Roman and not Verdana

This 6th line should be using Times New Roman and not Verdana

This 7th line should be using Times New Roman and not Verdana

This 8th line should be using Times New Roman and not Verdana

This 9th line should be using Times New Roman and not Verdana

This 10th line should be using Times New Roman and not Verdana

This 11th line should be using Times New Roman and not Verdana

This 12th line should be using Times New Roman and not Verdana

This 13th line should be using Times New Roman and not Verdana

This 14th line should be using Times New Roman and not Verdana

This 15th line should be using Times New Roman and not Verdana

This 16th line should be using Times New Roman and not Verdana

Reference:
"If an unquoted font family name contains parentheses, brackets, and/or braces, they must still be escaped per CSS grammar rules. Similarly, quotation marks (both single and double), semicolons, exclamation marks, commas, and leading slashes within unquoted font family names must be escaped."
CSS 2.1, section 15.3 font-family

The CSS validator will report Value Error, Parse Error and Lexical Error in such cases, at least for the above 16 tests.

Firefox 2.x, Firefox 3, Safari 3.1.2, Konqueror 4.1, Seamonkey 1.x, Seamonkey 2.x, all pass this test. Opera 9.52 fails 4 tests out of 16.

This bug has been reported at connect's IE beta feedback as bug 361953. This bug has been closed by the IE team and will not be fixed for the release of IE 8 final.