<!DOCTYPE html> <html> <head> <meta charset=" utf-8"> <meta name="author" content="http://www.xstnet.com"/> <title>子选择器</title> <style type="text/css"> #choice_list_district{ height:50px; } #tab td{ cursor:pointer; } #divobj{ position:absolute; width:200px; height:200px; background:blue; border:1px solid block; display:none; z-index:9999; } </style> <script type="text/javascript" src="js/jQuery/jquery-1.8.1.js"></script> <script type="text/javascript"> $(function (){ $("#choice_list_district a").click(function(e){ if($("#divobj").css("display")=="none"){ e.stopPropagation(); var offset=$(e.target).offset(); $("#divobj").css({top:offset.top+$(e.target).height()+"px",left:offset.left}); $("#divobj").show(); } else{ $("#divobj").hide(); } }); $(document).click(function(event){ $("#divobj").hide(); }); }); </script> </head> <body> <form id="form1" runat="server"> <div> <div id="choice_list_district"> <a href="#">出来层</a> </div> <div id="divobj"> </div> </div> </form> </body> </html>