Created attachment 86251 [details] Test Case for Outline-style Computed Style Breaks 3D Scale Querying the value of any computed style property on an element that has "outline-style" set causes 3D scaling to work differently on *all* elements. Specifically, the scale appears to fade or blur on the edges, which seems to be because the stretching now blends the element with the content behind it. It's important to note that the simple action of querying the computed style on one element actually breaks the rendering all elements on the page, not just the one on which the computed style property was queried. Test case attached.