Submitted by RoloDMonkey on 2007, November 18 - 21:06
Ever since I started making custom themes for Drupal, I kept running into a strange problem. If my theme or my content included a table, when I looked at it in Firefox the table would have a thin grey line on the top. I finally figured out what was causing this and I would like to share it with you.
If you want to skip the lecture, you can click here for the solution.