Invalid XHTML - Do not use <style>

Hi, on line 92 in horizontal_accordion.inc there is the following line:

  drupal_set_html_head('<style>#'.$div_id.'{overflow:hidden;width:100%;height:200px;}</style>');

This is not valid xhtml and you'll at least have to add "<style type="text/css">" in order to make it valid. :)

Sorry\, don't know how to make a patch, but maybe someone else here knows. :)