.ag-header-cell-label {
  justify-content: center;
}

.long-signal {
    height: 15px;
    width: 15px;
    background-color: #32cd32;
    border-radius: 50%;
    display: inline-block;
    vertical-align: middle;
    margin: 2px;
}

.no-signal {
    height: 15px;
    width: 15px;
    background-color: #6d6d6d;
    border-radius: 50%;
    display: inline-block;
    vertical-align: middle;
    margin: 2px;
}

.signal-container {
    text-align: center;
}