CodeMe.org is a non-profit orgonisation. the companies vision is to teach coding and computer science to every student in every school, same way as they would learn maths, science, or english. CodeMe.org allows students to learn and enrol in three different courses, HTML, CSS, and JavaScript.
HTML, also known as Hyper text markup language, is used by many web developers to develope web pages. HTML is not regarded as a programming language. HTML is used to indicate what a certain chunk of text is, such as a paragraph or a heading.
CSS stands for, Cascading Style Sheet. CSS is used to design the layout of the Web pages. It can also be used to define text styles, table sizes, and many other aspects of Web pages that previously could only be defined in a page's HTML.
JavaScript is a programming language mainly used in web development. It was developed by the company Netscape so that dynamic and interavtivity elements could be added to the websites.