Even before CSS3 introduced a cornucopia of new border properties, CSS2.1 provided plenty of great functionality, enabling designers to style and enhance borders in many different ways. But now with the many new border properties available with CSS3, much more is possible, including everything from background border images, asymmetrical border radii, border transformations, custom fitting, and much more. While not every browser fully supports all of these new stylistic possibilities, we can practice progressive enhancement to create beautiful, well-styled borders for modern browsers while supporting the dinosaurs with suitable fallback styles…
Direct link: Understanding CSS3 and CSS2.1 Border Properties