CSS is based on a syntax that is designed to be easy to read and write; Dreamweaver has context sensitive help and auto completion, it will help you complete the style tag. With CSS you can separate the content from the style definition, by default the style definitions are Browser based. We have three version of CSS, CSS1 is well supported; CSS 3 is still Alpha (least browser support is)
First File browser specific definitions for displaying H1 and P tags