I've read quite a bit about CSS over the last few weeks and think I've got the general idea that it can be used to define the 'look and feel' of the whole site - the advantage being that if you then want to make alterations, you just alter the CSS code rather than (possibly) 1000's of individual pages.
I created a very simple site click here using Serif Webplus 9 which automatically inserts all the CSS for you. So far so good. However, I'm also trying to get to grips with Dreamweaver (DW) MX 2004 - I know that's not the latest version! If you choose the option of a basic HTML site and start creating a simple page, again DW starts automatically inserting CSS code. If, however, you want to create your own coding eg all h1 headings to be red color, centered does that override the code that DW inserts?
Also, exactly at what stage, should you insert the CSS code - right at the start, half way through or at the end? In DW, I'm aware that there are CSS templates. Again, if you choose to use one of those do they override any automatic CSS that DW inserts?
Apologies if this is not crystal clear but any suggestions or clarification would be appreciated.