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We are committed to making our website as accessible as possible to the widest number of people.

Quality standards

To maximise website accessibility, we strive to comply with W3C standards and guidelines for HTML and CSS.

Browser accessibility

This website is built to display correctly in existing browsers – IE8+, Google Chrome and Firefox. If you’re using an old browser and the website appears broken, we recommend updating your browser. You can change how web pages are displayed in your preferred browser.

To find out more about this we recommend reviewing the most up-to-date options in your browser settings or reviewing the following guidelines:

Internet explorer accessibility features

Firefox accessibility features

Chrome accessibility features


We have used images throughout this website to add interest, provide variety and help explain concepts. These images have been kept as small as possible so pages load quickly. Each image has an alternative text tag (ALT tag) which provides a description of an image or a function. ALT tags are accessed by placing your mouse over an image.

Useful downloads

Adobe Acrobat PDF Some of the pages on this website have been created in Adobe Acrobat PDF (Portable Format Document) format. To view these documents you will need to download Acrobat Reader. You can get this from Adobe’s website.

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