Nesting block level elements inside the tag… right or wrong?

Question

Is it syntactically and semantically correct to nest

or any other block level element inside the

tag. I am talking about HTML

Answer 1

No, a paragraph element may not contain other block elements.

Reference

A paragraph tag is intended for a block of text. If your elements is a part of the text (and not block elements), it would be semantically correct, otherwise not. A span tag with display:block is still a block element.