body, html, *{
    margin: 0;
    padding: 0;
}

body{
    background: url(/doing_some_hiking_instead_of_producing_code.svg);
    background-position: center;
    background-size: cover;
}

body > div{
    position: relative;
    top: 50%;
    left: 50%;
    width: fit-content;
    transform: translate(-50%, -50%);
    text-transform: uppercase;
    font-weight: bold;
    border-radius: 5px;
    padding: 25px 15px;
    background-color: rgba(255,255,255,0.3);
}