@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document url-prefix("http://www.redmine.org/") {
  #wiki_form {
    float: left ! important;
    width: 50% ! important;
  }
  #preview {
    float: right ! important;
    width: 50% ! important;
    height: 551px ! important;
    overflow: scroll ! important;
  }
  #content_comments {
    width: 550px ! important;
  }
  #wiki_form .jstElements .help {
    display: none ! important;
  }
}