Sunday, November 27, 2005

A List Apart: Articles: CSS Design: Mo? Betta Rollovers

A List Apart: Articles: CSS Design: Mo? Betta Rollovers

The rollover effect ? simple interaction that assists usability. If your design is consistent, a user will only have to experience the effect once to understand what it does throughout your entire site, which makes my HCI guy giggle with delight.

For years we?ve been preloading our on?state images to assist the browser in its rollover presentation. Preloading increases the weight of the initial download, but adds to usability by decreasing the wait time for an on?state image to appear. Decreases, but may not eliminate. Even when preloaded, some browsers present momentary pauses prior to rendering the image.

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