If the validator issues Warning (not Error, namely Warning) - how bad is it? Is this a valid layout or not?

Question

Layout

Actually, subject. If my layout issues warnings, then this is already an invalid layout? And does it lose its advantage in cross-browser compatibility and indexing by search engines?

Answer 1

Kill it. Although the validator serves for the benefit of standardization, in fact it is necessary to operate with the susceptibility of browsers to layout and not look at this validator at all. Better use Lint'ers)) here they will help you do it right