Should xhtml have its doctype declaration be closed?

Answer:
You will generally want to end any tag that does not have a closing tag with "/" at the end before closing it. The DTD Doctype declaration is the exception since the HTML tag is not opened until after it.
First answer by Crigby. Last edit by Crigby. Contributor trust: 48 [recommend contributor recommended]. Question popularity: 1 [recommend question].