> everyone understands it and can work immediately with it. Only if by "understands" you mean "everyone is capable to throw things at the wall and seeing what

> everyone understands it and can work immediately with it. Only if by "understands" you mean "everyone is capable to throw things at the wall and seeing what sticks". I have seen a lot o HTML and CSS and let's just say, only a small fraction looked like it was done by someone with understanding "what" and "why". Otherwise it was just tortured to the point "somehow works unless someone changes something".