TinyMCE ReadOnlyMode None Border

<style type="text/css">
   span.defaultSkin table.mceLayout {border-right-width: 0px; border-left-width: 0px; }
   span.defaultSkin table.mceLayout tr.mceLast td {border-bottom-width: 0px; }
   span.defaultSkin table.mceLayout tr.mceFirst td {border-top-width: 0px; }
</style>
<script type="text/javascript" src="/tinymce/tiny_mce.js"></script>
<script type="text/javascript">
    tinyMCE.init({
        // General options
        mode : "exact",
        elements : "Content",
        theme : "advanced",
        readonly : true
    });
</script>