.neonText {
    animation: flicker 1.5s infinite alternate;
    color: #fff;
}

/* Flickering animation */
@keyframes flicker {
    0%, 18%, 22%, 25%, 53%, 57%, 100% {

        text-shadow:
        0 0 4px #fff,
        0 0 11px #fff,
        0 0 19px #fff,
        0 0 40px rgb(255, 136, 63),
        0 0 80px rgb(255, 136, 63),
        0 0 90px rgb(255, 136, 63),
        0 0 100px rgb(255, 136, 63),
        0 0 150px rgb(255, 136, 63);
    }
    
    20%, 24%, 55% {        
        text-shadow: none;
    }    
}