Browsers' default CSS stylesheets
I suspect this is something of a moving target for all the browsers, but there is a default style sheet for HTML 4 as defined by the W3C.
Are there any lists of default CSS stylesheets for different browsers? (browser stylesheets in tabular form)
I want to know the default font of text areas across all browsers for future reference.
There was some discussion and testing done on www-style not too long ago:
CSS class have compiled a list of CSS2.1 User Agent Style Sheet Defaults. Some links at the bottom of that page as well.