.masked h4{
            display: block;
            
            
            background-image: -webkit-linear-gradient(left, #3498db, #f47920 10%, #d71345 20%, #f7acbc 30%,
            #ffd400 40%, #3498db 50%, #f47920 60%, #d71345 70%, #f7acbc 80%, #ffd400 90%, #3498db);
            color: transparent; 
            -webkit-text-fill-color: transparent;
            -webkit-background-clip: text;          
            background-size: 200% 100%;            
            
            animation: masked-animation 4s infinite linear;
        }
        @keyframes masked-animation {
            0% {
                background-position: 0 0;   
            }
            100% {
                background-position: -100% 0;
            }
        }