Imitate the region selection effect of 51JOB (multiple regions can be selected)_Form special effects

<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>js region selection</title> <style> * {margin:0;} body {font-size:12px;} #container div{margin-top:5px;} #select_city h3{float:left;} #main_city,#all_province {clear:both;} #main_city div,#all_province div{width:600px;clear:left;} #main_city h4,#all_province h4{float:left;display:inline;font-size:16px;} #main_city div span,#all_province div span{margin:0 10px;cursor:pointer;font-size:12px;} #float_lay{width:200px;height:120px;border:1px #d1d1d1 solid;position:absolute;background:#fff;z-index:999;display:none;} </style> <input name="Input" id="test" value="">