A selection of markup symbols / codes that are put into a file so it is able to be displayed on a browser page.
A markup tells the browser being used how to collate the content on a web page for when the user opens it.
Markup codes are referred to as elements, some of these elements come in pairs that tell the browser when some display effect can start and finish.
It is the recommended by the Worldwide Web, and is what the main browsers stick to (Internet Explorer and Navigator). The most recent version of HTML is HTML 4.0, although the two browsers still execute their features uniquely and provide non-standard extensions. Developers that do use the advanced version of HTML 4.0 may have to create separate pages for different browsers.
A form of stylesheet language that details a documents presentation that is placed within a HTML or XML. CSS puts in place the elements that are provided on a screen, printer and within other forms of media.