Glitch css/html effect

GLITCH

<span class="h1 glitch" data-text="Blast.ORQ">Blast.ORQ</span>

style.css

.glitch:before {
	content: attr(data-text);
	position: absolute;
	left: -1px;
	text-shadow: 1px 0 black;
	top: 0;
	cccolor: _theme_text_color_;
	overflow: hidden;
	clip: rect(0, 900px, 0, 0);
	animation: noise-anim-2 3s infinite linear alternate-reverse;
	z-index:2;
	opacity:0.6;
}
.glitch:after {
	content: attr(data-text);
	position: absolute;
	left: 1px;
	text-shadow: -1px 0 red;
	top: 0;
	cccolor: _theme_text_color_;
	overflow: hidden;
	clip: rect(0, 900px, 0, 0);
	animation: noise-anim 2s infinite linear alternate-reverse;
	z-index:2;
	opacity:0.6;
}
@keyframes noise-anim {
  0% {
    clip: rect(83px, 9999px, 100px, 0);
  }
  5% {
    clip: rect(62px, 9999px, 64px, 0);
  }
  10% {
    clip: rect(40px, 9999px, 86px, 0);
  }
  15.0% {
    clip: rect(97px, 9999px, 55px, 0);
  }
  20% {
    clip: rect(75px, 9999px, 20px, 0);
  }
  25% {
    clip: rect(68px, 9999px, 71px, 0);
  }
  30.0% {
    clip: rect(90px, 9999px, 59px, 0);
  }
  35% {
    clip: rect(99px, 9999px, 77px, 0);
  }
  40% {
    clip: rect(28px, 9999px, 82px, 0);
  }
  45% {
    clip: rect(17px, 9999px, 43px, 0);
  }
  50% {
    clip: rect(30px, 9999px, 39px, 0);
  }
  55.0% {
    clip: rect(35px, 9999px, 91px, 0);
  }
  60.0% {
    clip: rect(10px, 9999px, 52px, 0);
  }
  65% {
    clip: rect(27px, 9999px, 74px, 0);
  }
  70% {
    clip: rect(23px, 9999px, 69px, 0);
  }
  75% {
    clip: rect(89px, 9999px, 55px, 0);
  }
  80% {
    clip: rect(59px, 9999px, 35px, 0);
  }
  85.0% {
    clip: rect(9px, 9999px, 51px, 0);
  }
  90% {
    clip: rect(93px, 9999px, 19px, 0);
  }
  95% {
    clip: rect(58px, 9999px, 98px, 0);
  }
  100% {
    clip: rect(96px, 9999px, 63px, 0);
  }
}
@keyframes noise-anim-2 {
  0% {
    clip: rect(41px, 9999px, 41px, 0);
  }
  5% {
    clip: rect(24px, 9999px, 8px, 0);
  }
  10% {
    clip: rect(59px, 9999px, 90px, 0);
  }
  15.0% {
    clip: rect(40px, 9999px, 83px, 0);
  }
  20% {
    clip: rect(96px, 9999px, 16px, 0);
  }
  25% {
    clip: rect(30px, 9999px, 54px, 0);
  }
  30.0% {
    clip: rect(85px, 9999px, 27px, 0);
  }
  35% {
    clip: rect(34px, 9999px, 55px, 0);
  }
  40% {
    clip: rect(46px, 9999px, 93px, 0);
  }
  45% {
    clip: rect(90px, 9999px, 55px, 0);
  }
  50% {
    clip: rect(56px, 9999px, 7px, 0);
  }
  55.0% {
    clip: rect(35px, 9999px, 16px, 0);
  }
  60.0% {
    clip: rect(3px, 9999px, 82px, 0);
  }
  65% {
    clip: rect(51px, 9999px, 19px, 0);
  }
  70% {
    clip: rect(2px, 9999px, 73px, 0);
  }
  75% {
    clip: rect(54px, 9999px, 40px, 0);
  }
  80% {
    clip: rect(53px, 9999px, 76px, 0);
  }
  85.0% {
    clip: rect(45px, 9999px, 17px, 0);
  }
  90% {
    clip: rect(14px, 9999px, 45px, 0);
  }
  95% {
    clip: rect(51px, 9999px, 25px, 0);
  }
  100% {
    clip: rect(15px, 9999px, 64px, 0);
  }
}