* {
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
}
body {
    background: -webkit-gradient(linear, left top, right top, from(hsl(200, 100%, 50%)), to(hsl(175, 100%, 50%)));
    background: -o-linear-gradient(left, hsl(200, 100%, 50%), hsl(175, 100%, 50%));
    background: linear-gradient(to right, hsl(200, 100%, 50%), hsl(175, 100%, 50%));
}
h1 {
    color: rgb(12, 9, 197);
    margin: 40px auto;
    font-size: 50px;
}
.container {
    display: -ms-grid;
    display: grid;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -ms-flex-line-pack: center;
        align-content: center;
    grid-auto-flow: row;
    gap: 70px;
}
.clock {
    width: 300px;
    height: 300px;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    border: 2px solid black;
    position: relative;
}
.clock .number {
    --rotation: 0;
    position: absolute;
    width: 100%;
    height: 100%;
    text-align: center;
    -webkit-transform: rotate(var(--rotation));
        -ms-transform: rotate(var(--rotation));
            transform: rotate(var(--rotation));
    font-size: 1.5rem;
}
.reverse {
  --reverse: 0;
  -webkit-transform: rotate(var(--reverse));
      -ms-transform: rotate(var(--reverse));
          transform: rotate(var(--reverse));
}
.number1 div { --reverse: -30deg; }
.number2 div { --reverse: -60deg; }
.number3 div { --reverse: -90deg; }
.number4 div { --reverse: -120deg; }
.number5 div { --reverse: -150deg; }
.number6 div { --reverse: -180deg; }
.number7 div { --reverse: -210deg; }
.number8 div { --reverse: -240deg; }
.number9 div { --reverse: -270deg; }
.number10 div { --reverse: -300deg; }
.number11 div { --reverse: -330deg; }

.clock .number1 { --rotation: 30deg; }
.clock .number2 { --rotation: 60deg; }
.clock .number3 { --rotation: 90deg; }
.clock .number4 { --rotation: 120deg; }
.clock .number5 { --rotation: 150deg; }
.clock .number6 { --rotation: 180deg; }
.clock .number7 { --rotation: 210deg; }
.clock .number8 { --rotation: 240deg; }
.clock .number9 { --rotation: 270deg; }
.clock .number10 { --rotation: 300deg; }
.clock .number11 { --rotation: 330deg; }

.clock .hand {
    --rotation: 0;
    position: absolute;
    bottom: 50%;
    left: 50%;
    width: 10px;
    height: 40%;
    background-color: black;
    border: 1px solid white;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    -webkit-transform-origin: bottom;
        -ms-transform-origin: bottom;
            transform-origin: bottom;
    z-index: 10;
    -webkit-transform: translateX(-50%) rotate(calc(var(--rotation) * 1deg));
        -ms-transform: translateX(-50%) rotate(calc(var(--rotation) * 1deg));
            transform: translateX(-50%) rotate(calc(var(--rotation) * 1deg));
}
.clock::after {
    content: '';
    position: absolute;
    background-color: black;
    z-index: 11;
    width: 15px;
    height: 15px;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
        -ms-transform: translate(-50%, -50%);
            transform: translate(-50%, -50%);
    border-radius: 50%;
}
.clock .hand.second {
    width: 3px;
    height: 45%;
    background-color: red;
}
.clock .hand.minute {
    width: 7px;
    height: 40%;
    background-color: black;
}
.clock .hand.hour {
    width: 10px;
    height: 35%;
    background-color: black;
}