*{
    box-sizing: border-box;
    font-family: sans-serif;
    margin: 0;
}
.clock{
    width: 500px;
    height: 500px;
    border-radius: 50%;
    margin: 50px auto 0;
    position: relative;
    border: 5px solid black;
}

.num{
    position: absolute;
    width: 100%;
    height: 100%;
    text-align: center;
    font-size: 25px;
}

.point{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    width: 15px;
    height: 15px;
    background-color: black;
}

.hand{
    position: absolute;
    top: 50%;
    border-radius: 5px;
    background-color: black;
    transition: all 0.3s;
}

.hand.hour{
    width: 35%;
    left: 32%;
    height: 7px;
    transform: rotate(90deg) translate(-50%, -50%);
}

.hand.min {
    width: 42%;
    left: 28.5%;
    height: 5px;
    transform: rotate(90deg) translate(-50%, -50%);
}

.hand.sec {
    background-color: red;
    width: 47%;
    left: 27%;
    height: 3px;
    transform: rotate(90deg) translate(-50%, -50%);
}