override.css

An override stylesheet for ExpressionEngine 2 that addresses niggling Control Panel issues that can be fixed purely by CSS.

What it does:

• Adds dropdown arrow indicators to the main navigation items that have submenus
• Adds subtle mouseover effects to submit buttons

Usage

To use, place override.css in your /themes/cp_themes/default/css/ directory (or in the css/ directory for whichever theme you're using), and refresh the CP. If you already have an override.css in there, you can of course just add the contents of this override.css into the existing one.

Overriding the Control Panel styles is officially documented by EllisLab.