By web standards, it is meant the standards set by the World Wide Web Consortium - the people who invented the web itself. New Browsers, generally support these standards. Old ones, generally, don't.
For a look at what the site should look like, click on the thumbnail image below
If you are able to, please strongly consider upgrading your web browser.
The following list of browsers support the current standards (HTML 4.01, XHTML 1.0 and CSS2).