html {
    background: #018ded url(http://unsplash.it/1500/1000?image=881&blur=50);
    background-size: cover;
    font-family: "helvetica neue";
    text-align: center;
    font-size: 10px;
}

body {
    margin: 0;
    font-size: 2rem;
    display: flex;
    flex: 1;
    min-height: 100vh;
    align-items: center;
}

.clock {
    width: 30rem;
    height: 30rem;
    border: 20px solid white;
    border-radius: 50%;
    margin: 50px auto;
    position: relative;
    padding: 2rem;
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.1), inset 0 0 0 3px #efefef,
        inset 0 0 10px black, 0 0 10px rgba(0, 0, 0, 0.2);
}

.clock-face {
    position: relative;
    width: 100%;
    height: 100%;
    transform: translateY(-3px);
    /* account for the height of the clock hands */
}

.hand {
    width: 50%;
    height: 2px;
    background: black;
    position: absolute;
    top: 50%;
    transform-origin: 100%;
    transform: rotate(90deg);
    transition: all 0.05s;
    transition-timing-function: cubic-bezier(0.1, 3, 0.6, 1);
}

.hour-hand {
    height: 6px;
}

.minute-hand {
    height: 4px;
}