Question

define content and empty tags in html

Answer 1

Elements that include both and on and end of tag are called content tag in HTML .
Elements that have only an on tag and do not required an losing tag are called empty tag .

Answer 2

Hey mate your answer is here
container tag. the tag which includes both on and off is called a container tag .eg. body
Empty element. the tag which has only on tag is called an Empty element .eg. break line tag
i hope it will help