.btn_size{
        width:65px;
        height:50px;
    }
    .btn_pos{
        position:relative;
        left:3%;
        top:15%;
        width: 220px;
    }
    .bak{
        background:url('logo2.png');
        background-repeat:no-repeat;
        background-position:95% 3%;
        background-size:75px,75px;
    }
    img{
        -webkit-touch-callout:none;
        -webkit-user-select:none;
    } 

    input{
    }
    .btn_size{
        width:75px;
        height:60px;
    }
    .btn_pos{
        position:relative;
        left:3%;
        top:15%;
        width: 220px;
    }
    .bak{
        background:url('logo2.png');
        background-repeat:no-repeat;
        background-position:95% 3%;
        background-size:75px,75px;
    }
    /* 编码图片*/    
    .poker_image{
        position:absolute;
        top:95px;left:10px;
        width: 210px;
        z-index:2;
    }
     /* 编码的文字*/  
    .poker_code{
        position:absolute;
        top:260px;left:95px;
        z-index:3;
        font-size:20px;
        font-weight:bold;
    }
    .poker{
        position:relative;
        border:1px solid #a1a1a1;
        background:#ffffff;
        border-radius:15px;
        width:230px;
        height: 340px;
        align-self: center;
        margin-top: 10px;
        text-align: center;
    }
    .poker_top{
        position:relative;
        top:20px;
        left:-95px;
        font-size: 28px;
    }
    .poker_botton{
        position:relative;
        top:180px;
        left:95px;
        font-size: 25px;
        transform: rotate(180deg);
        -ms-transform: rotate(180deg);		/* IE 9 */
        -webkit-transform: rotate(180deg);	/* Safari and Chrome */
        -o-transform: rotate(180deg);		/* Opera */
        -moz-transform: rotate(180deg);		/* Firefox */
    }
    .tab{
    width:100px;
    height:35px;
    border:1px solid #a1a1a1;
    background:#fffff;
    border-radius:2px;
    text-align:center;
    }
    .tab div{
        font-size:15px;
        font-weight:bold;
        margin-top:10px;
    }