HTML is a language for describing web pages. HTML stands for Hyper Text Markup Language. HTML is a markup language. A markup language is a set of markup tags. The tags describe document content. HTML documents contain HTML tags and plain text. HTML documents are also called web pages.

HTML Tags :

HTML markup tags are usually called HTML tags. HTML tags are keywords (tag names) surrounded by angle brackets like "<" and ">". HTML tags normally come in pairs like <tag> and </tag>. The first tag in a pair is the start tag, the second tag is the end tag. The end tag is written like the start tag, with a forward slash before the tag name.Start and end tags are also called opening tags and closing tags. The Syntax is

<tagname>content</tagname>

HTML Elements:

"HTML tags" and "HTML elements" are often used to describe the same thing. But strictly speaking, an HTML element is everything between the start tag and the end tag, including the tags.

HTML Element:

<p>This is a paragraph.</p>