This should be really simple, and I thought I was doing it correctly…evidently not.
I need to get the light grey box that says “Test” into the darker grey area, to the right of the list on the left. It’s supposed to be 270px tall (or whatever) and stretch to the right edge of the list on the left, and to the edge of the enclosing container on the right side.
Here’s a Fiddle with my code. Easy peasy. Thanks, guys and gals.
add
float: left;to yourrevision-gutterclass, and that should get you started.