Question

Is it valid to have an HTML form inside of a ‘section’ tag?

My professor keeps using section tags out the wazoo and I don’t think he’s always using them appropriately. Wanted to check on this specific instance.

Answer 1

Yes it is valid.

The HTML5 spec says that it can contain any flow content, where flow content is:

Most elements that are used in the body of documents and applications are categorized as flow content.

a abbr address area (if it is a descendant of a map element) article aside audio b bdi bdo blockquote br button canvas cite code command datalist del details dfn div dl em embed fieldset figure footer form h1 h2 h3 h4 h5 h6 header hgroup hr i iframe img input ins kbd keygen label map mark math menu meter nav noscript object ol output p pre progress q ruby s samp script section select small span strong style (if the scoped attribute is present) sub sup svg table textarea time u ul var video wbr text

If was still irking you, you could point him to this note:

The section element is not a generic container element. When an element is needed for styling purposes or as a convenience for scripting, authors are encouraged to use the div element instead. A general rule is that the section element is appropriate only if the element’s contents would be listed explicitly in the document’s outline.