Posted paper css3

Question

I'm attempting to make a posted paper in pure CSS3 that has box-shadow and transitions. I've so far completed a paper with shadows on both sides, but I want to change the appearance to something like this:

Is that even possible without images?

.shadow {
  width: 150px;
  height: 150px;
  background-color: yellow;
  position: relative;
}
.shadow:after {
  position: absolute;
  right: 10px;
  left: auto;
  -webkit-transform: skew(8deg) rotate(3deg);
  -moz-transform: skew(8deg) rotate(3deg);
  -ms-transform: skew(8deg) rotate(3deg);
  -o-transform: skew(8deg) rotate(3deg);
  transform: skew(8deg) rotate(3deg);
}

<div class="shadow">
  edit this even further
</div>