These designs will inspire you a lot for sure and if you see the source code of these web sites, you can pick and gather bundle of advanced CSS techniques and know more about a designer thinking and idea and how a good designer implement the idea into great and high quality website design.

Thealbany

ArtFlavours

B Carosini

Shawn Johnson

Vyniknite

Modstudio

Smooth Step

Easy Bistro

63 Under

The Pixel

Design Disease

Cool showcase

Juan Diego Velasco

Clever Craft

Beerenberg

They Make Apps

Carl Rosekilly

Pine Apple Thief

Hm-Andrei