When you post fic with multiple chapters to AO3, AO3 automatically adds a "Chapter 1 / Chapter 2" etc. to your chapter title. That sucks a little if you've got a prologue, because you end up with such titles as "Chapter 2: Chapter 1 - Title Of Chapter". Asked the AO3 folks about it and got the following suggestion to circumvent this problem, thought I should share:
1. Log in to the Archive and go to
http://ao3.org/skins2. Select "Create Skin"
3. Change the Type to "Work Skin".
4. Enter a unique name for the skin.
5. In the CSS box, type or paste .chapter.preface h3.title {display: none;}
6. Select Submit.
When you post a new work (or want to change an existing work), make sure to select the skin you just made in the Associations section. You can add in your own chapter titles by placing them within h3 tags as part of the text of the chapter. One thing to keep in mind though, work skins will not transfer over to downloads or subscription notifications, and users can override them by choosing the 'Hide Creator's Style' option. You can find more information about work skins here:
http://archiveofourown.org/admin_posts/119 Looks like
this.