.text-anim {
    background-image: linear-gradient(120deg, rgba(255,255,255,1) 10%, rgba(108,108,108,1) 11%,rgb(54, 54, 54) 12%, rgba(108,108,108,1) 13%, rgba(255,255,255,1) 14%, rgba(255,255,255,1) 100%);
    background-size: auto auto;
    background-clip: border-box;
    background-size: 200% auto;
    color: #fff;
    background-clip: text;
    text-fill-color: transparent;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: textclip 4s linear reverse infinite;
    display: inline-block;
    font-size: 190px;
}

@keyframes textclip {
    to {
        background-position: 200% center;
    }
}