A CodePen by Tomas Sardyha. CSS Polygons with clip-path - Texturized 2D shapes with CSS clip-path: polygon();. As of now, works only in Chrome.

The current implementation has no effect on cursor collision. That means the mouse events fire, and :hover styles are applied even when mouse is hovering over the clipped parts of an element. This should be fixed in the future.

Also, the clipping happens after all other drawing, so it clips everything including scrollbars and our belowed box-shadows :)