rocket-3d/templates/assets/css/base.css

* {
    margin: 0;
    padding: 0;
    height: 100%;
    /*overflow: hidden;*/
    
}

body .navigation {
    height: 5rem;
}

body .content {
    min-height: 80vh;
}

body .footer {
    max-height: 40vh;
}