Click the blank div layer close

Method One: jq

Code:

<script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<div class="tardiv" style="width:200px;height:200px;background:#eee">div块</div>
<script type="text/javascript">

$(document).click(function(e){

  var _con = $('.tardiv');   // 设置目标区域

  if(!_con.is(e.target) && _con.has(e.target).length === 0){

       $('.tardiv').remove();

  }

});

</script>

effect:

Method Two: