HTML5 & CSS
HTML5 is a core technology markup language of the Internet used for structuring and presenting content for the World Wide Web. HTML5 adds many new syntactic features. These include the new video, audio and canvas elements, as well as the integration of scalable vector graphics (SVG) content (replacing generic tags), and MathML for mathematical formulas. These features are designed to make it easy to include and handle multimedia and graphical content on the web without having to resort to proprietary plugins and APIs.