Incorrect Error Handling

This page has the following stylesheet:

color:maroon P.two {color: red; }

This text, which has class two, should not be red.

When Opera sees :maroon, it should parse maroon as a pseudo-class / pseudo-element. Since the only pseudos Opera knows are :link, :visited, :active, :first-line, and :first-letter, the entire selector should be ignored. Why is this a problem? Opera is using a strange heuristic to determine whether something before a selector was actually code that should have been within a block, but wasn't. If opera thinks that that was code that should have been in a block, it ignores it and parses the rest of the selector. However, this heuristic, as do most workarounds of this type, has serious bugs (see the second example). The entire selector should be ignored because of the standard rules for parsing: if error selection varies across browsers, the web will become a big mess, because each browser will be "forgiving" in different ways.