.glitch {
    position: relative;
    color: Blue;
    font-size: 4em;
    letter-spacing: 0.5em;
    /* Animation provies a slight random skew. Check bottom of doc
    for more information on how to random skew. */
    animation: glitch-skew 1s infinite linear alternate-reverse;
}

.glitch::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    left: 2px;
    text-shadow: -2px 0 #ff00c1;
    /* Creates an initial clip for our glitch. This works in
    a typical top,right,bottom,left fashion and creates a mask
    to only show a certain part of the glitch at a time. */
    clip: rect(44px, 450px, 56px, 0);
    /* Runs our glitch-anim defined below to run in a 5s loop, infinitely,
    with an alternating animation to keep things fresh. */
    animation: glitch-anim 5s infinite linear alternate-reverse;
}

.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    left: -2px;
    text-shadow: -2px 0 #00fff9, 2px 2px #ff00c1;
    animation: glitch-anim2 1s infinite linear alternate-reverse;
}

/* Creates an animation with 20 steaps. For each step, it calculates
a percentage for the specific step. It then generates a random clip
box to be used for the random glitch effect. Also adds a very subtle
skew to change the 'thickness' of the glitch.*/
@keyframes glitch-anim {
    0% {
        clip: rect(52px, 9999px, 74px, 0);
        transform: skew(0.07deg);
    }
    5% {
        clip: rect(24px, 9999px, 63px, 0);
        transform: skew(0.06deg);
    }
    10% {
        clip: rect(2px, 9999px, 47px, 0);
        transform: skew(0.88deg);
    }
    15% {
        clip: rect(11px, 9999px, 7px, 0);
        transform: skew(0.15deg);
    }
    20% {
        clip: rect(81px, 9999px, 70px, 0);
        transform: skew(0.39deg);
    }
    25% {
        clip: rect(63px, 9999px, 2px, 0);
        transform: skew(0.38deg);
    }
    30% {
        clip: rect(8px, 9999px, 19px, 0);
        transform: skew(0.46deg);
    }
    35% {
        clip: rect(60px, 9999px, 60px, 0);
        transform: skew(0.1deg);
    }
    40% {
        clip: rect(11px, 9999px, 30px, 0);
        transform: skew(0.32deg);
    }
    45% {
        clip: rect(34px, 9999px, 57px, 0);
        transform: skew(0.21deg);
    }
    50% {
        clip: rect(33px, 9999px, 58px, 0);
        transform: skew(0.57deg);
    }
    55% {
        clip: rect(32px, 9999px, 10px, 0);
        transform: skew(0.72deg);
    }
    60% {
        clip: rect(73px, 9999px, 31px, 0);
        transform: skew(0.81deg);
    }
    65% {
        clip: rect(18px, 9999px, 48px, 0);
        transform: skew(0.04deg);
    }
    70% {
        clip: rect(2px, 9999px, 24px, 0);
        transform: skew(0.35deg);
    }
    75% {
        clip: rect(11px, 9999px, 66px, 0);
        transform: skew(0.82deg);
    }
    80% {
        clip: rect(50px, 9999px, 5px, 0);
        transform: skew(0.48deg);
    }
    85% {
        clip: rect(36px, 9999px, 66px, 0);
        transform: skew(0.02deg);
    }
    90% {
        clip: rect(95px, 9999px, 48px, 0);
        transform: skew(0.41deg);
    }
    95% {
        clip: rect(87px, 9999px, 70px, 0);
        transform: skew(0.48deg);
    }
    100% {
        clip: rect(94px, 9999px, 15px, 0);
        transform: skew(0.47deg);
    }
}

@keyframes glitch-anim2 {
    0% {
        clip: rect(18px, 9999px, 52px, 0);
        transform: skew(0.69deg);
    }
    5% {
        clip: rect(30px, 9999px, 99px, 0);
        transform: skew(0.23deg);
    }
    10% {
        clip: rect(59px, 9999px, 53px, 0);
        transform: skew(0.03deg);
    }
    15% {
        clip: rect(72px, 9999px, 62px, 0);
        transform: skew(0.6deg);
    }
    20% {
        clip: rect(43px, 9999px, 55px, 0);
        transform: skew(0.98deg);
    }
    25% {
        clip: rect(62px, 9999px, 47px, 0);
        transform: skew(0.65deg);
    }
    30% {
        clip: rect(9px, 9999px, 66px, 0);
        transform: skew(0.74deg);
    }
    35% {
        clip: rect(82px, 9999px, 90px, 0);
        transform: skew(0.24deg);
    }
    40% {
        clip: rect(12px, 9999px, 81px, 0);
        transform: skew(0.88deg);
    }
    45% {
        clip: rect(31px, 9999px, 48px, 0);
        transform: skew(0.04deg);
    }
    50% {
        clip: rect(49px, 9999px, 75px, 0);
        transform: skew(0.52deg);
    }
    55% {
        clip: rect(75px, 9999px, 44px, 0);
        transform: skew(0.48deg);
    }
    60% {
        clip: rect(28px, 9999px, 19px, 0);
        transform: skew(0.57deg);
    }
    65% {
        clip: rect(85px, 9999px, 66px, 0);
        transform: skew(0.95deg);
    }
    70% {
        clip: rect(8px, 9999px, 34px, 0);
        transform: skew(0.98deg);
    }
    75% {
        clip: rect(34px, 9999px, 12px, 0);
        transform: skew(0.47deg);
    }
    80% {
        clip: rect(80px, 9999px, 69px, 0);
        transform: skew(0.79deg);
    }
    85% {
        clip: rect(78px, 9999px, 55px, 0);
        transform: skew(0.33deg);
    }
    90% {
        clip: rect(44px, 9999px, 4px, 0);
        transform: skew(0.3deg);
    }
    95% {
        clip: rect(58px, 9999px, 73px, 0);
        transform: skew(0.35deg);
    }
    100% {
        clip: rect(22px, 9999px, 41px, 0);
        transform: skew(0.24deg);
    }
}

@keyframes glitch-skew {
    0% {
        transform: skew(5deg);
    }
    10% {
        transform: skew(-1deg);
    }
    20% {
        transform: skew(-4deg);
    }
    30% {
        transform: skew(-3deg);
    }
    40% {
        transform: skew(3deg);
    }
    50% {
        transform: skew(0deg);
    }
    60% {
        transform: skew(2deg);
    }
    70% {
        transform: skew(1deg);
    }
    80% {
        transform: skew(-1deg);
    }
    90% {
        transform: skew(3deg);
    }
    100% {
        transform: skew(-4deg);
    }
}