http://www.reviewboard.org/ is a great review platform, but it's default style doesn't look good for me.

This style change

* bigger font size
* make color scheme like Github.
* compact form fields.

By default, this code apply on http://demo.reviewboard.org/, remember change the apply url on the top of the file to yours.

@-moz-document url-prefix("http://demo.reviewboard.org/") {