body{
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
    background-image: url(https://imagenes.elpais.com/resizer/v2/SUYTK33WQBCWXN7G5EZXMNXW5U.jpg?auth=20c3bee792d790fea0a4d41120b2d9b3324a556d66e62f3f20576bdddb41da12&width=1960&height=1103&focal=540%2C331);
    background-repeat: no-repeat;
    background-size: cover;
}
h1{
    background-color: white;
}
ul li {
    list-style: none;
}
ul li a {
    text-decoration: none;
    color: black;
}