I suggest something that has different colors for HTML code, so it is separate from the text of your site. You really need something that doesn't change the code around for promotion reasons. The combination of a high tech hit counter plus a link is good for every webmaster. The directory is setup as 38 sections on a subject and each page under a section has a hundred sites on it and the sites are arranged in order of most hits. So, you are encouraged to promote your site.
Browsers are important to a webmaster.
It's a good idea that you should find others to check your site with as well. Your site needs to be browser friendly for most major browsers. A signature file cannot be emphasized enough. Sig files are important. You should use them for e-mail and posting messages on message boards.