Визуальный редактор. Стили контентной области.

.content ul {
    ...
}

.content a {
    ...
}

.content img {
    ...
}

AddEventHandler("fileman", "OnIncludeHTMLEditorScript", array("MyHandlers", "OnIncludeHTMLEditorScript"));

class MyHandlers {

   public static function OnIncludeHTMLEditorScript()
   {
      ?>
      <script type="text/javascript">
      BXHTMLEditor.prototype.SetView_ = BXHTMLEditor.prototype.SetView;
      BXHTMLEditor.prototype.SetView = function (sType) {
         var result = this.SetView_(sType);
         if(BX.browser.IsIE()) {
            try {
               this.pEditorDocument.body.className = "content";
            } catch (e) {
               alert("Error: can not change body style");
            }         
         } else {
            try {
               this.pEditorWindow.document.body.className = "content";
            } catch (e) {
               alert("Error: can not change body style");
            }
         }
         return result;
      };
      </script>
      <?
   }
}