Prevent children from inheriting rotate transformation in CSS

I am performing a CSS transform: rotate on a parent, yet would like to be able to negate this effect on some of the children - is it possible without using the reverse rotation?

Reverse rotation does work, but it affects the position of the element, and it may have a negative performance impact (?). In any case, it doesn't look like a clean solution.

I tried the "transform: none" suggestion from this question prevent children from inheriting transformation css3, yet it simply doesn't work - please see the fiddle here: http://jsfiddle.net/NPC42/XSHmJ/

I believe that you are going to need to fake it using a second child, the specification does not seem to allow for the behavior you would like, and I can understand why the position of a child element has to be affected by a transform to its parent.

This isn't the most elegant of solutions, but I think you're trying to do something that the specification is never going to allow. Take a look at the following fiddle for my solution:

.parent {
  position: relative;
  width: 200px;
  height: 150px;
  margin: 70px;
}

.child1 {
  background-color: yellow;
  width: 200px;
  height: 150px;
  -webkit-transform: rotate(30deg);
  -moz-transform: rotate(30deg);
  -o-transform: rotate(30deg);
  -ms-transform: rotate(30deg);
  transform: rotate(30deg);
}

.child2 {
  position: absolute;
  top: 30px;
  left: 50px;
  background-color: green;
  width: 70px;
  height: 50px;
}

<div class="parent">
  <div class="child1"></div>
  <div class="child2"></div>
</div>