Welcome to Learning HTML
The ol element denotes an ordered list. The items in the list are denoted using the li element.
The hr element represents a paragraph-level thematic break. This is another oddly specified term that arises from the need to separate semantics from presentation.
The blockquote element denotes a block of content that is quoted from another source.
The pre element lets you change the way that the browser deals with content, so that whitespace is not collapsed and formatting is preserved. This can be useful when the original formatting of a section of content is significant.
The div element doesn’t have a specific meaning. You use it to create structure and give meaning to content when the other HTML elements are insufficient.