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This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site’s quality by simply including it as an external stylesheet.

When hovering marked elements, a little banner should appear on top of your browser displaying what’s going on.

This file is not a replacement to a complete tool such as OpQuast Reporting, Tanaguru ou Tenon. It only intends to show possible weaknesses. You should obviously do some manual check by hand to know whether the code should or should not be fixed.

Counters

CSS counters are incremented on each error/advice/warning and results are displayed with html::after. Since it is added through CSS, it is basically fake-content which is good since it is no more than visual indication for the developper to see what’s going on. It will appear on the bottom left side of your page. :)