Is there a tool that QA can use to check the Font Size, Font Style, Pixels, Color used on the UI pages?
Most UI Testing tools have component inspectors and other features to compare properties of pages and components with a set of expected values. I'd say go searching around to see what's available in free trials.
Automated Testing Evangelists
Definition expert - noun - Unknown drip under pressure
Firebug, Developer Tools (IE).
Lukasz Morawski, QA Engineer Cognifide testing blog PTaQ