Most people with cartography experience are familiar with the idea of using box shadows to make a map or design element stand out from the broader canvas. What if you want to apply these same concepts to a web design or web map?
In the past, applying these “modern” effects to a web elements required workarounds, such as exporting an image file with the desired effect. With the advent of CSS3, however, many of these technologies can be rendered “on the fly” with modern web browsers.
One useful site that takes the guesswork out of css is CSS3Generator.com. Check it out!