(Hypertext Reference) The HTML code used to create a link to another page. The HREF is an attribute of the anchor tag, which is also used to identify sections within a document.
Alternatively referred to as a fixed space or hard space, NBSP (non-breaking space) is used in programming, and word processing to create a space in a line that cannot be broken by word wrap. With HTML ,   ; allows you to create multiple spaces that are visible on a web page and not only in the source code.