#analog-clock {
    position: relative;
    width: 100px;
    height: 100px;
    border: 5px solid black;
    border-radius: 50%;
    margin: 0 auto;
}

.hour, .minute, .second {
    position: absolute;
    background-color: black;
    width: 50%;
    height: 2px;
    transform-origin: 100%;
    top: 50%;
    left: 50%;
    transform: rotate(0deg);
}

.minute {
    background-color: gray;
}

.second {
    background-color: red;
    height: 1px;
}