Sunday, May 24, 2009

Don’t forget keyboard navigation

Input from mouse and keyboard ...

"Many developers take for granted that everybody uses a mouse to interact with the web. I don’t have any numbers, but it is indeed likely that the majority of people are primarily mouse users.

However, some people choose not to use a mouse because they find using the keyboard to navigate is faster. Others simply cannot use a mouse and are forced to use other input devices.

Either way, accommodating people who do not use a mouse is not very difficult:

* Make sure that all interactive objects can be activated by the keyboard alone
* Use the :focus CSS pseudo-class to highlight elements when they receive focus

Testing how you’re doing is easy – just unplug your mouse and try using the site you’re working on.

Further reading:

* Accessible JavaScript: Beyond the Mouse
* Keyboard-Friendly Link Focus

This post is a Quick Tip. Background info is available in Quick Tips for web developers and web designers."    (Continued via 456 Berea Street)    [Usability Resources]

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