css tables
Tables suck. Christ, I can't get tables to look correct using CSS. Mozilla derivatives (I use Camino) and Safari behave reasonably well (but slightly differently) under the border collapse model, and also both behave reasonably well (and the same) under the separate border model, but IE5 refuses to behave well under any model. Screw Microsoft.
If anyone reading this is a CSS wizard with tables, please drop me a line via email or in the comments.