Making a Multimedia Website

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factfile8.5 Accessibility

 

An accessible site should be usable by a wide range of visitors, whatever their situation. This includes people with special needs as well as those who access the website using non-standard computers.

Some websites allow partially sighted or dyslexic visitors to choose high-contrast colour schemes and larger text sizes to make it easier to read. They may use screen readers or have the default font set to large to make it easier to read.

Check that your site still works if the page zoom or browser font size is increased - do all elements still work? Try not to hard-code exact font sizes so that users can increase the size if they want to.

font modifier

BBC colour schemes

You can find out more about how websites such as the BBC follow accessibility guidelines here : http://www.bbc.co.uk/accessibility/

Think also about the colour schemes you choose for colour-blind users. The most common colour blindness is red/green. People with this condition cannot tell the difference between red and green and both colours will appear to be the same. It’s a good idea to avoid red text on a green background or vice versa. You can see what certain images look like to someone who is colour blind here: http://www.vischeck.com/examples/

A site should also be navigable through the use of the keyboard only to aid accessibility: in other words, pressing the TAB key should highlight each hyperlink in turn without needing to use the mouse.

As has been mentioned in earlier sections, all images should have a text alternative i.e. ALT Text. Text descriptions for other multimedia content such as video and sound files should also be added.

The size of a user's screen or the speed of internet connection can cause big problems, especially with the increased use of smartphones and tablets to access the internet. Low graphics versions can be produced which download faster and look better on smaller screens.

 

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