Revo default admin theme buttons

<table cellspacing="0" class="x-btn x-btn-noicon" id="ext-comp-1036" style="width: auto;"><tbody class="x-btn-small x-btn-icon-small-left"><tr><td class="x-btn-tl"><i> </i></td><td class="x-btn-tc"></td><td class="x-btn-tr"><i> </i></td></tr><tr><td class="x-btn-ml"><i> </i></td><td class="x-btn-mc"><em unselectable="on" class="x-btn-arrow"><button type="button" id="ext-gen96" class=" x-btn-text">Bulk Actions</button></em></td><td class="x-btn-mr"><i> </i></td></tr><tr><td class="x-btn-bl"><i> </i></td><td class="x-btn-bc"></td><td class="x-btn-br"><i> </i></td></tr></tbody></table>