With the first part no I wasn't suggesting to create a new stylesheet for every page. What it sounds like you need from your description is that a few pages will need a few styles that differ. So maybe you want an h2 green on one page and blue on another. But on all pages your h1's might be red.
You could create a single stylesheet for the h1 and all other tags that will remain consistent across pages. And then have another stylesheet with the h2 that might want to be different on some pages. You could have alternative stylesheets for some styles that are included only where needed.
It would be similar to writing some styles in the <head> of individual pages.
However I don't think you'll need to do that. One thing you might do is use a different id or class on the interior page(s) that need to be different. So if your content is generally wrapped with:
<div id="main-content">
content here
</div>
you could change that to
<div id="main-content-about">
content here
</div>
for your about page and then just style things inside that div in your main style sheet.
You could have:
#main-content h1, #main-content-about h1 {styles here}
where the two should be the same and then write out some separate styles where they need to differ.
#main-content h2 {styles here}
#main-content-about h2 {styles here}
and have everything be in the same stylesheet you include on every page.
There are really a few ways to solve the problem. The choice of which to use will come down to some of the details. Hopefully the above works, but if not feel free to share more details about what will be changing on the interior pages or even better post a link to the site if it's online somewhere.
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