CSS transformでカーソルを合わせると3Dボックス風にコンテンツを表示させる 3D Shading with Box-Shadows | Codrops

http://tympanus.net/codrops/2013/08/27/3d-shading-with-box-shadows/

A tutorial about a technique that uses box shadows for creating a realistic shading effect on simple objects.