Default options

With left-top & right-bottom

or the color & height of the ribbon...

or the color of the edges & back part...

or the width/height of the back part & overlap...

or you can hide the back part...

or add some border-radius...

or all options! (in this case with only one side)

Some nice example

Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Phasellus hendrerit. Pellentesque aliquet nibh nec urna. In nisi neque, aliquet vel, dapibus id, mattis vel, nisi. Sed pretium, ligula sollicitudin laoreet viverra, tortor libero sodales leo, eget blandit nunc tortor eu nibh. Nullam mollis. Ut justo. Suspendisse potenti.