.tu-online {
    padding: 2px;
    margin: 2px;
    box-shadow: 0 1px 1px #000;
    border-top: 4px solid #69b452;
    border-bottom: 4px solid #69b452;
    border-left: 4px double #69b452;
    border-right: 4px double #69b452;
}
.tu-offline {
    padding: 2px;
    margin: 2px;
    box-shadow: 0 1px 1px #000;
    border-top: 4px solid #FF4040;
    border-bottom: 4px solid #FF4040;
    border-left: 4px double #FF4040;
    border-right: 4px double #FF4040;
}
.tu-nouser {
    padding: 2px;
    margin: 2px;
    box-shadow: 0 1px 1px #000;
    border-top: 4px solid #d8730c;
    border-bottom: 4px solid #d8730c;
    border-left: 4px double #d8730c;
    border-right: 4px double #d8730c;
}