These pages were designed to follow the CSS2 style rules. Validated for CSS 2.1 on 10 May 2011.

They were originally tested on Internet Explorer 9 on Windows 7, and subsequently on Firefox 4, Safari 5.05 and Opera 11.1 running on Windows 7. They have also been tested on Internet Explorer 8 and Google Chrome running under Windows XP SP3.

Some changes to the original pages were required because of the way some page elements or attributes are not fully supported by some browsers, and we did not want to complicate matters by adding scripts to the pages.

If you are using a non-Windows PC, or a different browser, you may experience some display difficulties. This is likely to be caused by the way your browser software implements the CSS style rules, and is not necessarily caused by a faulty website.

However, we are not perfect. If your problems persist after changing browsers, please email the webmaster with details of your computer brand, your operating system and your browser version and I'll try to fix it.