From the earliest days of CSS, web designers were using it to format boxes of content. As CSS became more powerful, the boxes became more impressive, creating everything from nicely shaded headers to floating, captioned figures. And when CSS cracked the hovering problem, floating boxes were even turned into rich, glowy buttons, taking over from the awkward JavaScript-based approaches of yore. With this is mind, it’s no surprise that some of the most popular and best-supported CSS3 features can make your boxes look even prettier, no matter what they hold.