Web Browser Protocol Support

Added 30 Jul 2008

All web browsers must support the HTML (Hypertext Markup Language) protocol. HTML is now in its 4th edition, and all recent web browsers should support HTML4.

CSS (Cascading Style Sheets) is a protocol which enables web designers to quickly build attractive web pages by separating design from content. CSS1 is supported by most modern web browsers. CSS2 support is lacking in some browsers, specifically Microsoft Internet Explorer.

XHTML (eXtensible Hypertext Markup Language) represents a merger of HTML and XML (Extensible Markup Language). XHTML has been an accepted standard since 2000, but support for XHTML is still not present in all web browsers.

RSS (Really Simple Syndication) is a relatively new standard which enables web content providers to syndicate content and make it available for distribution on other web sites. Web browsers such as Mozilla Firefox and Safari support the RSS protocol.