stands for HyperText Markup Language. It is used to design web pages using a markup language.
beHTML is a combination of Hypertext and Markup language.
Hypertext defines the link between web pages.
A markup language is used
to define the text document within the tag which defines the structure of web pages.
Cascading Style Sheets, fondly referred to as CSS,
is a simply designed language intended to simplify the process of making web pages presentable.
CSS allows you to apply styles to web pages.
More importantly, CSS enables
you to do this independently of the HTML that makes up each web page
JavaScript is a lightweight, cross-platform, single-threaded, and interpreted compiled programming language.
It is also known as the scripting language for webpages.
It is well-known for the development of web pages,
and
many non-browser environments also use it.