CSS is a style sheet language used for describing the presentation of a document written in a markup language
HTML is a markup language for creating web pages and web applications.
AJAX is a set of development techniques on the client side to create asynchronous Web applications.
WORDPRESS is a free and open-source content management system based on PHP and MySQL.
MAGENTO is an open-source e-commerce platform written in PHP.
CODEIGNITER is an open-source software rapid development web framework, for use in building dynamic web sites with PHP.