<body>
  <h1 data-text="HELLO!">HELLO!</h1>
</body>
@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body{
    height: 100vh;
    width: 100%;
    background: radial-gradient(#480d35 ,#17151d);
    display: grid;
    place-items: center;
}
h1{
  position: relative;
  font-family: "Poppins", sans-serif;
  color: #f6d8d5;
  font-size: 150px;
}
h1:hover{
  opacity: 0.9;
  text-shadow: 0px -5px #ec2225, 0px 5px #00c2cb, -5px 0px #ec2225, 5px 0px #00c2cb;
}
h1::before{
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  color: #e0ffff;
  z-index: -1;
}
h1:hover::before{
  animation: animate 12ms ease-in-out infinite;
  z-index: 1;
}
@keyframes animate{
  0%, 100%{
    top: -7px;
    left: 0;
    opacity: 1;
  }
  20%{
    top: 0;
    left: -10px;
    opacity: 0.7;
  }
  40%{
    top: 7px;
    left: 0;
    opacity: 0.2;
  }
  60%{
    top: 0;
    left: 10px;
    opacity: 0.3;
  }
  80%{
    top: 0;
    left: 0;
    opacity: 0.9;
  }
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

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