.form{width:400px;border:1px solid #69AC37;margin:auto;height:250px;margin-top:50px;padding:5px;}.form .bt{width:100px;margin-left:141px;color:#fff;background:#000;border:1px solid #000;font-weight:bold;}.form input,.form label,.form fieldset{float:left;}.form label{width:140px;}.form fieldset{width:100%;padding:10px 0;margin:5px 0;}.form input{border:1px solid #69AC37;}.captcha{text-align:center;}.captcha span{cursor:pointer;}