.naka table {
        font-size: 80%;
        color: #666666;
        width: 740px;
        margin-bottom: 30px;
        border: 1px solid #CCCCCC;
        border-collapse: separate;
        border-spacing: 1px;
        margin-left: auto;
        margin-right: auto;
        font-size: 12px;
}
.naka th {
        padding: 5px;
        border-right: 1px solid #CCCCCC;
        border-bottom: 1px solid #CCCCCC;
        background-color: #E1E2E6;
        font-size: 12px;
}
.naka td {
        padding: 5px;
        border-right: 1px solid #CCCCCC;
        border-bottom: 1px solid #CCCCCC;
        background-color: #EFF2F3;
        font-size: 12px;
}