Html is the language used for creating web pages and understood by every browser that exist today.
The most important concept in the HTML standard is the idea of elements. Elements are the container that contains web page content. A typical web page is consisting of dozens of elements.
HTML uses text surrounded by angle brackets to indicate how your content should be displayed in the browser. The text with angle brackets is referred to as a tag, a pair of tags holding some text is referred to as an element.