body {
  background: black;
  font-family: 'Crimson Text', sans-serif;
}

.glitch {
  color: white;
  font-size: 100px;
  position: relative;
  width: 400px;
  margin: 0 auto;
}

@keyframes noise-anim {
  0% {
    clip: rect(93px, 9999px, 30px, 0);
  }
  5% {
    clip: rect(7px, 9999px, 97px, 0);
  }
  10% {
    clip: rect(72px, 9999px, 1px, 0);
  }
  15% {
    clip: rect(56px, 9999px, 76px, 0);
  }
  20% {
    clip: rect(75px, 9999px, 76px, 0);
  }
  25% {
    clip: rect(21px, 9999px, 29px, 0);
  }
  30% {
    clip: rect(59px, 9999px, 5px, 0);
  }
  35% {
    clip: rect(89px, 9999px, 10px, 0);
  }
  40% {
    clip: rect(33px, 9999px, 42px, 0);
  }
  45% {
    clip: rect(24px, 9999px, 92px, 0);
  }
  50% {
    clip: rect(81px, 9999px, 51px, 0);
  }
  55% {
    clip: rect(79px, 9999px, 82px, 0);
  }
  60% {
    clip: rect(68px, 9999px, 64px, 0);
  }
  65% {
    clip: rect(86px, 9999px, 12px, 0);
  }
  70% {
    clip: rect(8px, 9999px, 41px, 0);
  }
  75% {
    clip: rect(100px, 9999px, 76px, 0);
  }
  80% {
    clip: rect(12px, 9999px, 40px, 0);
  }
  85% {
    clip: rect(5px, 9999px, 8px, 0);
  }
  90% {
    clip: rect(31px, 9999px, 37px, 0);
  }
  95% {
    clip: rect(24px, 9999px, 36px, 0);
  }
  100% {
    clip: rect(16px, 9999px, 75px, 0);
  }
}
.glitch:after {
  content: attr(data-text);
  position: absolute;
  left: 2px;
  text-shadow: -1px 0 red;
  top: 0;
  color: white;
  background: black;
  overflow: hidden;
  clip: rect(0, 900px, 0, 0);
  animation: noise-anim 2s infinite linear alternate-reverse;
}

@keyframes noise-anim-2 {
  0% {
    clip: rect(94px, 9999px, 79px, 0);
  }
  5% {
    clip: rect(88px, 9999px, 22px, 0);
  }
  10% {
    clip: rect(50px, 9999px, 97px, 0);
  }
  15% {
    clip: rect(33px, 9999px, 49px, 0);
  }
  20% {
    clip: rect(11px, 9999px, 27px, 0);
  }
  25% {
    clip: rect(88px, 9999px, 63px, 0);
  }
  30% {
    clip: rect(1px, 9999px, 96px, 0);
  }
  35% {
    clip: rect(35px, 9999px, 50px, 0);
  }
  40% {
    clip: rect(81px, 9999px, 36px, 0);
  }
  45% {
    clip: rect(26px, 9999px, 20px, 0);
  }
  50% {
    clip: rect(82px, 9999px, 67px, 0);
  }
  55% {
    clip: rect(43px, 9999px, 2px, 0);
  }
  60% {
    clip: rect(31px, 9999px, 93px, 0);
  }
  65% {
    clip: rect(68px, 9999px, 6px, 0);
  }
  70% {
    clip: rect(66px, 9999px, 84px, 0);
  }
  75% {
    clip: rect(73px, 9999px, 26px, 0);
  }
  80% {
    clip: rect(88px, 9999px, 77px, 0);
  }
  85% {
    clip: rect(44px, 9999px, 92px, 0);
  }
  90% {
    clip: rect(98px, 9999px, 90px, 0);
  }
  95% {
    clip: rect(45px, 9999px, 40px, 0);
  }
  100% {
    clip: rect(85px, 9999px, 90px, 0);
  }
}
.glitch:before {
  content: attr(data-text);
  position: absolute;
  left: -2px;
  text-shadow: 1px 0 blue;
  top: 0;
  color: white;
  background: black;
  overflow: hidden;
  clip: rect(0, 900px, 0, 0);
  animation: noise-anim-2 3s infinite linear alternate-reverse;
}