The World Wide Web Consortium (W3C) created a set of standards so the Web would work better for everyone. New browsers, mainly, support these standards; old browsers, mainly, don’t.
Prior to the creation of these standards (and prior to browser support for them), designers had no choice but to design and develop their sites according to the proprietary quirks of each browser; a method of working that has at least four major disadvantages:
By contrast, with valid XHTML and CSS, it is relatively easy to apply site-wide changes, implement redesigns, and generate wireless markup versions on the fly.
The ones created by the World Wide Web Consortium – the people who invented the Web itself. The W3C created these standards so the Web would work better for everyone. New browsers, mainly, support these standards; old browsers, mainly, donšt.
You might consider upgrading to any of the following browsers. Doing so will improve your web experience, enabling you to use and view sites as their creators intended. The following browsers support numerous web standards including CSS, XHTML, and the DOM (a universal means of controlling the behavior of web pages):
In addition, the lightweight Opera browser offers excellent support for CSS and XHTML, though it does not as yet support the DOM.