I spend much less time writing novel CSS to accommodate designs, and more time on webapp and "real" software development.
I actually used to make half my wage converting tricky designs to good CSS when £99 3-day cowboys let clients down...
Almost none of that now. I'm designing the UI for the purpose and we let a framework handle the basic styling and circle back around to brand it.
Much healthier model from where I'm sitting but I worry for the graphics teams. It's hard to convince a client to drop £3k on a design process when they already have a functional (and not bad looking) interface.