How can I locate the default style sheet for a browser?

Question

I would like to see the specific style elements that are used in the default stylesheet for the various browsers. Do the browsers have an actual file based stylesheetss that I locate on my system and read? If so, what are the default locations of those files? If not, where I can find this information?

Answer 1

• From the WebKit source respository
• Unofficial Grid of several major browsers

Answer 2

On Firefox, look for res/html.css, and the other CSS files in the same directory.

Or just open resource://gre-resources/forms.css in Firefox.