body {
    background-color: #6F1C67;
}

a, p, span, nav {
    color: white; 
    font-family:Arial; 
    font-size: calc(12px + 0.75vw);
    text-align: center; 
}

nav {
    text-align: center; 
    width: 80%; 
    margin:auto
}

/* For desktop: */
@media (min-width: 1200px) {
  nav{width:50%}
}