Update: the use of RGBa in CSS 10.29.08 A working solution for transparency in web standards browser I read this today on one of Andy Clarkes websites, he heard it from a conference talk by Cederholm. Here's the CSS syntax: p {color: rgba(255, 255, 255, 0.5);} The RGBa let's you set the RGB values for Red, Green and Blue, like in a regular RGB CSS color, but then adds 'a' for the alpha channel. Yo