Well.. usually the “repeating” content is your header/footer/sidebars.. so just separate them in header.php, footer.php, sidebar.php and include those files and then you’ll only have to change header.php and the changes will reflect all the pages..
Of course, if your website is with static HTML pages and you can’t use a scripting language like PHP/ASP and so on.. there are 2 other options:
- dreamweaver supports templating of the static files
- HTML itself supports simple templating
with CSS it won’t work.. Yes, CSS3 supports content but not in that aspect :)
Regards