.app-container {
    padding-top: 80px;
    padding-bottom: 80px;
}
@media(max-width: 768px) {
    .app-container {
        padding-top: 20px;
        padding-bottom: 20px;
    }
}

span.required:before {
    content: '(Required)';
    color: blue;
    font-size: .8em;
}