Others have pointed out that this validates with automated tools. Here's the parts of the spec: - "An html element's end tag can be omitted if the html element

Others have pointed out that this validates with automated tools. Here's the parts of the spec: - "An html element's end tag can be omitted if the html element is not immediately followed by a comment." https://html.spec.whatwg.org/multipage/semantics.html#the-html-element https://html.spec.whatwg.org/multipage/semantics.html#the-ht... - "A head element's end tag can be omitted if the head element is not immediately followed by ASCII whitespace or a comment." https://html.spec.whatwg.org/multipage/semantics.html#the-head-element https://html.spec.whatwg.org/multipage/semantics.html#the-he... - "A body element's end tag can be omitted if the body element is not immediately followed by a comment." https://html.spec.whatwg.org/multipage/sections.html#the-body-element https://html.spec.whatwg.org/multipage/sections.html#the-bod...