table.stations {
    border-collapse: collapse;
}

table.stations td, table.stations th{
    border: 1px solid black;
    padding: 2px;
}

table.stations tr.timedOut {
    background-color: red;
}

table.stations tr.lowVoltage {
    background-color: yellow;
}

table.stations tr.neverHeard {
    background-color: purple;
    color: #eee;
}