The span element is a generic wrapper for phrasing content that by itself does not represent anything.
phrasing content
common attributes
A span element must have both a start tag and an end tag.
any element that can contain phrasing elements
The span element is a can be used with attributes such as class, lang/xml:lang, and title to add additional semantics and structure to phrasing content.
interface HTMLSpanElement : HTMLElement {};