Visualization of the focus state is vital for keyboard users, but often is missing due to suppression of focus using CSS. Learn more about why focus matters and how to fix it.
Full keyboard access isn't enabled by default in Mac OS. Often this leaves developers thinking there is something wrong with the implementation of keyboard access for a site or application, when in fact it is just a matter of changing a few system and browser preferences.
The most popular way of creating icons on the web is also completely inaccessible to some users. Learn the techniques for creating icons that are accessible in High Contrast mode.