.control-group .btnimg{
    display: inline-block;
    height: 40px;
    padding: 0px 12px;
    margin-right: 10px;
    border: none;
    cursor: pointer;
}
.btnimg {
    font-family: "Microsoft Yahei", "Lucida Grande", Verdana, Lucida,
 Helvetica, Arial, sans-serif;
    /* display: inline-block; */
    padding: 0 10px;
    height: 32px;
    /* line-height: 30px; */
    /* color: #666; */
    min-width: 80px;
    cursor: pointer;
    text-align: center;
    font-size: 12px;
    font-weight: 400;
    box-sizing: border-box;
    vertical-align: middle;
    -webkit-appearance: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    outline: 0;
    text-decoration: none;
    background-image: none;
    background-color: #f6f6f6;
    border: 1px solid #ccc;
    /* border-radius: 2px; */
}
#img_demo1 {
   background: url("../img/id-front.jpg") no-repeat;
    width: 346px;
    height: 89px;
	color: #777;
    clear: both;
    float: left;
    margin-top: 10px;
	}
	#img_demo2 {
   background: url("../img/id-back.jpg") no-repeat;
    width: 346px;
    height: 89px;
	color: #777;
    clear: both;
    float: left;
    margin-top: 10px;
	}
	#img_demo3 {
   background: url("../img/id-hand.jpg") no-repeat;
    width: 346px;
    height: 89px;
	color: #777;
    clear: both;
    float: left;
    margin-top: 10px;
	}