A <span> element used to color a part of a text:
The <span> tag is used to group inline-elements in a document.
The <span> tag provides no visual change by itself.
The <span> tag provides a way to add a hook to a part of a text or a part of a document.
The <span> tag also supports the Global Attributes in HTML.
The <span> tag also supports the Event Attributes in HTML.
HTML tutorial: HTML Blocks
HTML DOM reference: Span Object