Are you posting in the right place? Check out Where should I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following: a, b, big, blockquote, br, caption, center, col, colgroup, dd, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, li, ol, p, pre, readmore, small, span, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul
Snippets of code should be wrapped in <code> tags not
tags. In fact,
tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible editor intervention).
Want more info? What shortcuts can I use for linking to other information? or Writeup Formatting Tips are good places to start.