.neonText {
    position:fixed;
    max-height: 10px;
    text-underline-position: 0;
    color: #db89e2;
    font-family: "Vibur", sans-serif;
    font-size: 1.8em;
    animation: flicker 2s infinite alternate;
    rotate: 1 -1 0 32deg;
    font-weight: 400;
    line-height: normal;


}


/* Flickering animation */
@keyframes flicker {

    0%,
    18%,
    22%,
    25%,
    53%,
    57%,
    100% {

        text-shadow:
            0 0 2px #080808,
            0 0 4px #915e96,
            0 0 11px #a621b3,
            0 0 19px #a812b6;
        color: #db89e2;

    }

    20%,
    24%,
    55% {
        text-shadow:
            0 0 2px #080808,
            0 0 4px #2f2a30,
            0 0 11px #72177a,
            0 0 19px #7f0e8a;
        color: #d661e0;
    }
}

<link itemprop="associatedMedia" href="https://archive.org/download/relaxingsounds/Falls%204%203h%20Splashing%2BSpillingLoud%28Highest%20pitch%29Waterfall.mp3">