I want a border for my Q&A plugin


I am using Q&A, and given subscribers can add a question or add an answer.

My problem is i am using Educlean theme its background color is white, even Q&A theme color is also white. Q&A and Educlean both colors are mixing and users are hard to find place to enter his question or answers, it's better we can give border to Q&A theme, pls help me how to do this.