close-button 不是应该放在div 里面吗！

<div class="tang-title tang-title-dragable" id="TANGRAM__PSP_2__title"><div class="buttons" id="TANGRAM__PSP_2__titleButtons"><a id="TANGRAM__PSP_2__closeBtn" class="close-btn" href="###" onmousedown="event.stopPropagation &amp;&amp; event.stopPropagation(); event.cancelBubble = true; return false;" onclick="return false;"></a></div><span id="TANGRAM__PSP_2__titleText">登录百度帐号</span></div>