The lack of information in w3s can cause confusion. I had a recent example when looking for an interaction in CSS that seemed completely bonkers to me that was

The lack of information in w3s can cause confusion. I had a recent example when looking for an interaction in CSS that seemed completely bonkers to me that was immediately explained in the first paragraph of MDN. I decided to look up how it was documented on w3s (disclaimer: I hate it) and they never even mention it. Sorry for it not being a concrete example, it was last week and I don't have access to my machine atm.