Thanks for the reply! That solved what I wanted to do.
As for the documentation question, what I was hoping for was something that says what parts of the layout are called what under the hood (example: #site-generator = footer, #primary = main column, #secondary = small column, etc.).
The actual names needed for modifying my custom css are obviously not intuitive, or I wouldn’t have had to ask.
Hope that explains wha I was asking better.
Later,
Robert