main {
      min-height: calc(100vh - 140px);
    }
    #footer {
        height: 140px;
    }
    .footer-content {
        height: 80px;        
    }
    .footer-legal {
        height: 60px;        
    }

@media (min-width: 576px) {
    main {
      min-height: calc(100vh - 132px);
    }
    #footer {
        height: 100px;
    }
    .footer-content {
        height: 60px;        
    }
    .footer-legal {
        height: 40px;        
    }
}