Information technology (IT) is a set of related fields that encompass computer systems, software, programming languages, data and information processing, and storage . IT forms part of information and communications technology (ICT). Hypertext Markup Language ( HTML ) is the standard markup language for documents designed to be displayed in a web browser . It defines the content and structure of web content . It is often assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript , a programming language. Cascading Style Sheets ( CSS ) is a style sheet language used for specifying the presentation and styling of a document written in a markup language such as HTML or XML (including XML dialects such as SVG , MathML or XHTML ). CSS is a cornerstone technology of the World...