/* windowed desktop */
@media screen and (min-width:500px) and (max-width:1500px) {
    #wrapper {
        margin: 0 auto; 
        width: 70vw;
    }
}

/* maximized desktop */
@media screen and (min-width:1500px) {
    #wrapper {
        margin: 0 auto;
        width: 50vw;
    }
}