HTML
Web Hypertext Application Technology Working Group (WHATWG): Web Browser | Hyper Text Markup Language
sKILLS: Web | Front-End Development
Coding F-E-Dev # E27012
JavaScript
Oracle Corporation : Web Browser | High-Level Programming Language
CSS
Cascading Style Sheets: Web Browser | Style Sheet Language
PHP
PHP (Hypertext Preprocessor): Web Browser | Open-Source Server-Side Scripting Language