A CSS3 Overlay System
Overlays and modal dialogs are immensely popular in modern web applications. The first implementation that rose to popularity was the famous Lightbox, initially intended as a way to show larger previews of thumbnail pictures on a page. Its particularity was that, aside from showing the content in a modal way, the background would be dimmed out to let the user focus on what was being shown. Ever since then, the pattern has been constantly reinvented and revisited in creative ways. Chances are high that many of the websites (specially web applications) you use everyday have one or more modal dialogs that overlay the content, presenting a new workflow to the user.... detail[...]
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