.led-red {
    display: inline-block;
    width: 12px;
    height: 12px;
    background: #ff0000;
    border-radius: 50%;
    box-shadow: 0 0 6px #ff0000;
    margin: 0 4px;
}

.led-green {
    display: inline-block;
    width: 12px;
    height: 12px;
    background: #00C700;
    border-radius: 50%;
    box-shadow: 0 0 6px #00C700;
    margin: 0 4px;
}

.led-purple {
    display: inline-block;
    width: 12px;
    height: 12px;
    background: #8000ff;
    border-radius: 50%;
    box-shadow: 0 0 6px #8000ff;
    margin: 0 4px;
}