I'm using a theme (Cover WP) with a left and right sidebar. I put the EDD Search widget into the right sidebar. Problem is the "Search downloads for:" the search box and the search button are shifted far into the left column and outside of the borders of the widget. Each of my widgets are in a div that has a border. The main content of this widget is not only sitting primarily on top of content in the left sidebar, it's also outside of the div.
I've tried adding your example CSS file to mine and it seems like no matter what I do, the settings are being overwritten by a file somewhere else.