事件监听器对CSS伪元素，如：before或：after？

我们假设有一个DIV，一个CSS伪元素：之前以一个关闭的形式。我可以在伪元素上只有一个点击事件监听器吗？

Let's say a have a DIV, with a CSS pseudo-element :before in the form of say, a close botton. Can I have a click event listener on the pseudo-element ONLY?

<div id="box"></div>


#box:before {
 content:"";
 position:absolute;
 top:-10px;
 right:-10px; 
 display:block; 
 width:20px;
 height: 20px;
 background: url(close.png);
}

#box {
 height: 100px;
 width: 100px;
}