HTML5 The fifth revision of the HTML standard. It is still under development but is expected to become a new standard for web pages that eventually is expected to replace XHTML. It provides improved processing of audio and video files and is supported by most mobile devices.
Hit Records the number of times a specific page or item is accessed. Joomla tracks hits for many item types, for instance, an article or a banner ad.
CSS A Cascading Style Sheet or CSS is used to control the presentation of an XHTML page. For example, a CSS file will often control the font, margins, color, background graphics, and other aspects of a web page's appearance. CSS allows you to separate the content of an XHTML page from it's appearance. In Joomla!, CSS files (for example, template.css) are normally part of the template. Reference: http://docs.joomla.org/Glossary
