HTML

Ever think of how websites are made of? all of them are from HTML.

HTML is otherwise known as Hypertext Markup Language which is a set of markup tags that describe document content which are also called webpages. You can edit your webpage with HTML tags such as <p>.

Source: code.tutsplus.com

HTML elements are anything between starting and closing tags. They can also have attributes which edit those elements. For example, name="value". You can create HTML using Sublime Text.