This site is built in XHTML 1.0 Transitional. All pages should validate against the relevant document type declaration using the World Wide Web (W3C) validator.
We aim to provide web content that conforms to level AA of the W3C Web Accessibility Initiative (WAI) Web Content Accessibility Guidelines. All the pages on this site were tested before being published. If you think we are not achieving these standards, please contact us and tell us the URL of the page and any problems you have found. We will do our best to fix them.
This site uses Cascading Style Sheets (CSS) for visual presentation and avoids the use of tables. Tables are used solely for tabular data. Some of our CSS styles are not specified in the CSS 2.1 specification, but are specified in CSS3 as it currently stands. Browsers which do not support these rules should simply ignore them.
All the pages on this site were subject to the following tests before publication: