html {
    box-sizing: border-box;
    font-size: 62.5%; /** 1rem = 10px **/
    display: flex;
    flex-direction: column;
    height: 100%;
}

* {
    margin: 0;
    padding: 0;
    text-decoration: none;
    color: black;
    font-size: 2rem;
}

body{
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    justify-content: center;
}

img{
    width: 100%;
    max-width: 65rem;
}
a{
    font-size: larger;
    color: blue;
}