HTML, CSS & JavaScript

Homepage

https://www.w3.org/standards/history/html52/

https://www.w3.org/TR/CSS/#css

https://ecma-international.org/publications-and-standards/standards/ecma-262/

What is it?

The three "core" languages of website design and implementation. HTML is a markup language for putting elements on a page, CSS is a language for deciding how those elements should be laid out on the page, and JavaScript is a client-side scripting language for adding interactive functionality and other dynamic content to the page. 

Why did we choose it?

What else did you think we would choose?!

What do we use it for?

Pretty much all of Deserted Chateau's frontend code.