.top-containel {
    position: sticky;
    top: 0;
}
    .top-containel .btn.btn-default {
        background-color: #f1f1f1;
    }

    .order_nav {
        font-size: 14px;
        position: sticky;
        top: 0;
        left: 0;
        background: #fff;
        padding-top: 10px;
    }

.breadcrumb > .active {
    color: #ff6a00;
    font-weight: bold;
}

.table tfoot {
    color: #888;
    font-size: 12px;
}

.btn_area {
    position: fixed;
    bottom: 0;
    left: 0;
    height: 46px;
    background: #F5F5F5;
    width: 100%;
    font-size: 16px;
}

    .btn_area .a_btn {
        display: block;
        height: 46px;
        width: 100%;
        text-align: center;
        line-height: 46px;
        background: #ff6a00;
        color: #fff;
        font-size: 16px;
        cursor: pointer;
    }

        .btn_area .a_btn:hover {
            text-decoration: none;
        }

        .btn_area .a_btn.btn-all {
            display: block;
            width: 100%;
        }

        .btn_area .a_btn.s_1 {
            background: #666666;
        }

        .btn_area .a_btn.s_2 {
            background: #3F51B5;
        }

        .btn_area .a_btn.s_3 {
            background: #009688;
        }

        .btn_area .a_btn.s_4 {
            background: #08c66b;
        }

        .btn_area .a_btn.s_5 {
            background: #ff0000;
        }

.bottom-containel {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    border-top: 1px #999 solid;
    background-color: #fff;
}

    .bottom-containel .table td {
        padding: 25px 0;
    }

    .bottom-containel .label {
        font-size: 18px;
        font-weight: bold;
    }

.bottom-btns .btn {
    color: #fff;
    border: 0;
    border-radius: 0;
    background: #ff6a00;
    border-top: 1px #999 solid;
}

.bottom-btns .btn-default.s_1 {
    background-color: #666666;
}

.bottom-btns .btn-default.s_2 {
    background-color: #3F51B5;
}

.bottom-btns .btn-default.s_3 {
    background-color: #009688;
}

.bottom-btns .btn-default.s_4 {
    background-color: #08c66b;
}

.bottom-btns .btn-default.s_5 {
    background-color: #ff0000;
}

.pay_options {
    text-align: center;
    margin: 20px 0;
}

    .pay_options a {
        display: inline-block;
        padding: 10px 20px;
        border-bottom: 1px #fff solid;
        font-size: 16px;
        text-decoration: none;
    }

        .pay_options a:first-child {
            margin-right: 40px;
        }

        .pay_options a:hover, .pay_options a:active {
            text-decoration: none;
        }

        .pay_options a.active {
            color: #ff6a00;
            border-bottom: 1px #ff6a00 solid;
        }

.pay_amount {
    text-align: center;
    font-size: 3em;
    font-weight: bold;
    color: #ff6a00;
    padding: 40px 0;
}

.op_1 .input_container {
    width: 200px;
    margin: 0 auto;
}

.op_1 .btn_container {
    text-align: center;
    margin-top: 40px;
}