.tab-gps {
}
    .tab-gps .GPS_info {
        float: left;
        display: block;


        width: 190px;

        border: 1px solid silver;
    }
        .tab-gps .GPS_info table {
            padding: 5px;
            line-height: 18px;
        }
    .tab-gps .GPS_signal_strength {
        float: left;

        margin-left: 10px;

        width: 200px;

        border: 1px solid silver;
    }
        .tab-gps .GPS_signal_strength table {
            padding: 5px;
            line-height: 18px;
        }
    .tab-gps .GPS_info .head,
    .tab-gps .GPS_signal_strength .head {
        display: block;

        text-align: center;
        line-height: 20px;
        font-weight: bold;

        border-bottom: 1px solid silver;
        background-color: #ececec;
    }