#header { position: absolute; z-index: 9; }
#header h1.logo { max-width: 50%; height: 75px; margin: 9rem 0; }
#header h1.logo img { width: 100%; height: 100%; object-fit: contain; }

@media screen and (max-width: 768px) {
    #header h1.logo { height: 10rem; }
}