Is there a way to creat a gradient with a stop n pixels from the bottom edge of the element?
For example with Moz/Firefox it would look like:
-moz-linear-gradient(center bottom , #f00 2%, #d00 31px)
It should also be noted that this gradient has a companion gradient to do the same thing to the very top of the box. So really the css looks like this for FF and i need to reproduce for webkit:
background-image: -moz-linear-gradient(center top , rgba(255,0,0,0.75) 2%, rgba(255,0,0,0) 31px), -moz-linear-gradient(center bottom , rgba(255,0,0,0.75) 2%, rgba(255,0,0,0) 31px);
You can't do that with the current webkit syntax. Good news though! There will be a new -webkit-linear-gradient property (just announced on the webkit blog) that basically matches the -moz syntax and will allow you to do this. This syntax should become the definitive CSS3 syntax, so you'll be able to drop the -webkit and -moz entirely at some point. (The old -webkit-gradient property will continue to work indefinitely, but is not favored going forward.)
This recipe can be found in it's original form on Stack Over Flow.