Here’s How You Use it
The Four-Value syntax supports offsets from any edge, in this case I’m using right, bottom.
Checkout My Background!
background-position: right 20px bottom 20px;
The Four-Value syntax has pretty good browser support working in all modern browsers with the exception of Safari. From what I’ve been able to find it works in Safari Nightly but is not yet supported in safari mobile or android mobile. Although, I’ve tested it in Safari mobile and it appears to work just fine.