Forgot to make.

Author: smfr

css3-transforms/Overview.html

@@ -788,11 +788,11 @@ <h3 id=transform-3d-rendering><span class=secno>6.1. </span>3D Transform
    plane as its containing block.
 
   <p> Three-dimensional transforms can result in transformation matrices with
-   a non-zero Z component<!-- clarify -->, potentially lifting them off the
-   plane of their containing block. Because of this, elements with
-   three-dimensional transformations could potentially render in an
-   front-to-back order that different from the normal CSS rendering order,
-   and intersect with each other. Whether they do so depends on whether the
+   a non-zero Z component (where the Z axis projects out of the plane of the
+   screen). This can result in an element rendering on a different plane than
+   that of its containing block. This may affect the front-to-back rendering
+   order of that element relative to other elements, as well as causing it to
+   intersect with other elements. This behavior depends on whether the
    element is a member of a <a class=term href="#d-rendering-context">3D
    rendering context</a>, as described below.