*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html{
    font-size: 65%;
}
body{
    height: 100vh;
    background-color: black;
    display: flex;
    justify-content: center;
    align-items: center;
}

.circle{
    width: 40rem;
    height: 40rem;
    background-color: white;
    border-radius: 50%;
    box-shadow: 0 0 0 5rem red;
    display: flex;
    justify-content: center;
    align-items: center;
}

.center{
    width: 20rem;
    height: 20rem;
    background-color: blue;
    border-radius: 50%;
    box-shadow: 0 0 0 5rem red;
    position: relative;
}

.arrow{
    width: 0rem;
    height: 0rem;
    position: absolute;
    border: 9rem solid transparent;
    border-top: 8rem solid white;
    top: 0;
    left: 0;
}

.arrow:first-child{
    top: 5.5rem;
    left: 1rem;
}

.arrow:nth-child(2){
    transform: rotate(68deg);
    left: -3.5rem;
    top: 3.5rem;
}

.arrow:last-child{
    transform: rotate(-68deg);
    left: 5.5rem;
    top: 3.5rem;
}