Popup Overlay Slide from Left?

Popup Overlay Slide from Left?

Is there a simple way of having the Popup overlay slide in from the left instead of right? I changed the popup panel css to this:

  1. right: auto !important;
  2. left: 0 !important;

The panel is now on the left (which I want) but it slides in from the right and travels all the way across the viewport to get there.

I'm probably overlooking something.

Thanks for any ideas.