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Preload rollover images without any extra CSS or Javascript
Using alternate background images for "active" elements, or when hovering over an element is extremely common. In changing the image, however, unless precaution is taken, a flicker or delay is to be expected while the alternate image is loaded. I often use a single image that contains many possibilities and simply shift it's position around using CSS depending on the specific button in my custom website designs.
Also categorized under css, website development
Bjørn Enki’s web design blog
A list of each blog post categorized under “Javascript”
JavaScript is making a huge comeback these days, thanks to frameworks, and is largely what we have to thank for the recent change in website development and website philosophy. Interactivity and customization go hand-in-hand with client side data manipulation, and JavaScript is paving the way for a brighter new internet.