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

.glitch {
  color: white;
  font-size: 100px;
  position: relative;
  width: 400px;
  margin: 0 auto;
  margin-top: 200px;
}

@keyframes noise-anim {
  0% {
    clip: rect(78px, 9999px, 4px, 0);
  }
  5% {
    clip: rect(6px, 9999px, 71px, 0);
  }
  10% {
    clip: rect(99px, 9999px, 18px, 0);
  }
  15% {
    clip: rect(48px, 9999px, 2px, 0);
  }
  20% {
    clip: rect(77px, 9999px, 99px, 0);
  }
  25% {
    clip: rect(33px, 9999px, 75px, 0);
  }
  30% {
    clip: rect(82px, 9999px, 89px, 0);
  }
  35% {
    clip: rect(21px, 9999px, 72px, 0);
  }
  40% {
    clip: rect(37px, 9999px, 2px, 0);
  }
  45% {
    clip: rect(19px, 9999px, 98px, 0);
  }
  50% {
    clip: rect(58px, 9999px, 74px, 0);
  }
  55% {
    clip: rect(51px, 9999px, 87px, 0);
  }
  60% {
    clip: rect(51px, 9999px, 50px, 0);
  }
  65% {
    clip: rect(49px, 9999px, 91px, 0);
  }
  70% {
    clip: rect(61px, 9999px, 65px, 0);
  }
  75% {
    clip: rect(29px, 9999px, 81px, 0);
  }
  80% {
    clip: rect(95px, 9999px, 14px, 0);
  }
  85% {
    clip: rect(43px, 9999px, 77px, 0);
  }
  90% {
    clip: rect(59px, 9999px, 16px, 0);
  }
  95% {
    clip: rect(86px, 9999px, 8px, 0);
  }
  100% {
    clip: rect(7px, 9999px, 87px, 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(23px, 9999px, 71px, 0);
  }
  5% {
    clip: rect(74px, 9999px, 95px, 0);
  }
  10% {
    clip: rect(66px, 9999px, 56px, 0);
  }
  15% {
    clip: rect(98px, 9999px, 15px, 0);
  }
  20% {
    clip: rect(60px, 9999px, 74px, 0);
  }
  25% {
    clip: rect(93px, 9999px, 91px, 0);
  }
  30% {
    clip: rect(27px, 9999px, 89px, 0);
  }
  35% {
    clip: rect(34px, 9999px, 41px, 0);
  }
  40% {
    clip: rect(71px, 9999px, 78px, 0);
  }
  45% {
    clip: rect(52px, 9999px, 64px, 0);
  }
  50% {
    clip: rect(89px, 9999px, 11px, 0);
  }
  55% {
    clip: rect(26px, 9999px, 88px, 0);
  }
  60% {
    clip: rect(53px, 9999px, 22px, 0);
  }
  65% {
    clip: rect(91px, 9999px, 75px, 0);
  }
  70% {
    clip: rect(84px, 9999px, 13px, 0);
  }
  75% {
    clip: rect(2px, 9999px, 4px, 0);
  }
  80% {
    clip: rect(33px, 9999px, 54px, 0);
  }
  85% {
    clip: rect(87px, 9999px, 84px, 0);
  }
  90% {
    clip: rect(73px, 9999px, 44px, 0);
  }
  95% {
    clip: rect(86px, 9999px, 62px, 0);
  }
  100% {
    clip: rect(31px, 9999px, 73px, 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;
}