Tests the styles found in layout.css. First up...
This technique is not ready for use. FireFox has some major problems: it doesn't allow boxes to be positioned or floated, and they can't be laid out by nesting them in other, justified, boxes — or given flexible widths.
Lays children out horizontally, stretched vertically
width: 20%;
FF: FireFox does not respond to percentage widths on box children.
width: 20%;
FF: FireFox does not justify children.
Lays children out vertically, stretched horizontally
height: 60%;
FF: FireFox does not respond to percentage heights on box children.
FF: FireFox can't display: box; elements with position: absolute. This is a major drawback.
FF: FireFox can't display: box; floated elements. Do we have to wrap everything?