Just an FYI:
I received a support forum message from one of my users where the plugin overwrites Theme styles with its own styles. Once I went over the Theme in question this was confirmed.
From what I can see you're using:
There's no need to use reset.css because that will cause many issues with some Themes. If Theme already incorporates the reset.css problem will be even worse.
IMO plugins should not use reset.css and you can see my answer here that once reset.css is disabled there are no issues.
Great thing you made here BTW, I really love your work!