.css-signal {
        display: inline-block;
        width: 62px;
        height: 30px;
        border-radius: 6px;
        position: relative;
        background-color: black;
        zoom: 1.7;
}
.css-signal span,
.css-signal::before {
        content: "";
        color: white;
        position: absolute;
        border-radius: 15px;
        width: 22px;
        height: 22px;
        top: 4px;
}
.css-signal::before {
        left: 6px;
        background-color: red;
        background-color: dimgrey;
}
.css-signal span {
        left: 34px;
        background-color: green;
        background-color: dimgrey;
}
.signalred::before {
        background-color: red;
        box-shadow: 0 0 20px red;
}
.signalgreen span {
        background-color: limegreen;
        box-shadow: 0 0 20px limegreen;
}