HTML-What is HTML

What is HTML 

HTML is a set of logical codes (markup) in parentheses that constitute the appearance of a web document and the information it contains.
E.g.

This text would appear bold in the browser

The codes are enclosed by less than “ < ”, and greater than “ > ” brackets.These bracketed codes of the markup are commonly referred to as tags. HTML codes are always enclosed between brackets and are not case-sensitive; meaning, it does not matter whether you type them in upper
case or lower case. However, tags are easier to recognize in a web document if they are capitalized.
Most elements have an opening element (tag) and a closing element (tag) distinguished by the “ / ” inside the “ < ” opening bracket.