client/web/src/components/MobileWarning/style.css

#mobile-warning {
    color:white;
  }
  
#mobile-warning p {
    margin-bottom: 10px;
}

@media (max-width: 768px) {
    #mobile-warning { display: block; }
}
  
@media (min-width: 769px) {
    #mobile-warning { display: none; }
}