.clear:after {
            content: "";
            display: block;
            clear: both;
        }
        
        .lf {
            float: left;
        }
        
        .rt {
            float: right;
        }
        
        .code {
            font-family: Arial;
            font-style: italic;
            color: blue;
            font-size: 30px;
            border: 0;
            padding: 2px 3px;
            letter-spacing: 3px;
            font-weight: bolder;
            float: left;
            cursor: pointer;
            width: 150px;
            height: 50px;
            line-height: 60px;
            text-align: center;
            vertical-align: middle;
            background-color: #D8B7E3;
        }
        
        span {
            text-decoration: none;
            font-size: 12px;
            color: #288bc4;
            padding-left: 10px;
        }
        
        table.tftable {
            font-size: 12px;
            color: #333333;
            width: 100%;
            border-width: 1px;
            border-color: #999999;
            border-collapse: collapse;
            text-align: center;
        }
        
        table.tftable th {
            font-size: 16px;
            background-color: #f54001;
            border-width: 1px;
            padding: 8px;
            border-style: solid;
            border-color: #729ea5;
            color: #fff;
            font-weight: bold;
        }
        
        table.tftable tr {
            background-color: #fff;
        }
        
        table.tftable td {
            font-size: 14px;
            border-width: 1px;
            padding: 15px;
            border-style: solid;
            border-color: #999999
        }
        
        #scrollUp,
        #feedback,
        .qr_tool {
            background-image: url(../images/backgrounds32.png);
        }
        
        .bottom_tools {
            position: fixed;
            z-index: 999;
            right: 20px;
            bottom: 40px;
        }
        
        .bottom_tools>* {
            font: 0/0 a;
            display: block;
            margin-top: 5px;
            color: transparent;
            border: 0;
            background-color: transparent;
            text-shadow: none
        }
        
        .qr_img {
            position: absolute;
            top: -189px;
            left: -183px;
            display: none;
            max-width: 173px;
        }
        
        #scrollUp {
            width: 45px;
            height: 45px;
            background-position: -54px -53px;
            display: none;
        }
        
        #scrollUp:hover {
            background-position: -100px -53px
        }
        
        #feedback {
            width: 45px;
            height: 45px;
            background-position: -102px 0
        }
        
        #feedback:hover {
            background-position: -146px -46px
        }
        
        .qr_tool {
            width: 45px;
            height: 45px;
            background-position: -148px 0;
            cursor: pointer;
        }
        
        .qr_tool:hover {
            width: 45px;
            height: 45px;
            background-position: -192px -46px;
        }