I try to transform my div container like the following picture.

Left is a normal div container painted black. On the right is the container i want to have.
Do you know how to solve this in css3 ? i read something about the “Polygon” attribute in css3, but i also heard that this attribut was removed.
edit: when content is in the box it would be screchted – the box is like “falling in the back”.
I found an article at css-tricks.com regarding this a while back. This may work: