How to replicate the styling of html heading tags

Question

Can anyone tell me how to replicate the styling of a <h3> tag using CSS?

Answer 1

The formatting of the H3 tag is chosen by the browser, so you may be able to replicate it for one browser but it won't necessarily map to another one...

Answer 2

From: "Appendix D. Default style sheet for HTML 4" http://www.w3.org/TR/CSS2/sample.html

display: block;
font-size: 1.17em;
margin: .83em 0;
font-weight: bolder;

Of course, Kendrick is right in saying that browsers may use different formatting than suggested by the W3C.

Answer 3

If you want to get Firefox's style for all browser's, you can look in the "computed styles" tab of firebug when inspecting an h3 element with it, and copy what you see in a CSS file.