Easings page: E.elastic && roundTrip && !flipTrip requires windowResize because of scrollbars

[sidewayss]

1. open Easings page
2. select Type = elastic
3. check Round trip
4. uncheck flip
   Here is what you will see:
   
   This is the only way to add a vertical scrollbar to the body. The scrollbar reduces the innerWidth, causing tight margins on the left, loose ones on the right, margins relative to the box-shadow.

Calling resizeWindow() upon entering and leaving this configuration would correct these unsightly margins.