I'm trying to styling the pages now, and would be great if i have a kind of chart indicating to which element these tags (h1, h2, h3) are related. I mean, i want to change the title of the secundaries pages just changing these tags in the style.css and other elements and it would be easier if i have that information. Thanks.

You really want to stay away from playing with style.css Styling the pages is done thru all the options in the theme. If you need to override a particular option or add something there is the 'HTML/CSS inserts' set of options

Try to do the styling within the theme options, that's why it's so great, no need to mess with the style.css

Thanks, Jungledad. You are right.