<h1 contenteditable data-text="Grow">Grow</h1>

@font-face {
  font-family:'Decovar Regular24'; 
  src:url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/209981/Decovar-VF.ttf');
}

h1 {
  margin: 0;
  font-size: 20vw;
  position: relative;
  font-weight: 400;
  // Variable font
  font-family: "Decovar Regular24"; 
  font-variation-settings: 'INLN' 400, 'SWRM' 1000;

  
  // Background clip to image
  -webkit-background-clip: text;
    -webkit-text-fill-color: transparent; 
  background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/209981/209708058_b5a5fb07a6_o.jpg);
  background-size: 30%;
  background-repeat: repeat;
  
  text-shadow: 2px 2px 5px rgba(#2a4308, 0.4);
  animation: grow 3s linear infinite alternate;
  
  &:before {  
    text-shadow: 
      1px 1px 2px rgba(#2a4308, 0.5),
      -1px 1px 2px rgba(#2a4308, 0.5),
      -1px -1px 2px rgba(#2a4308, 0.5),
      1px -1px 2px rgba(#2a4308, 0.5),
      3px 3px 20px rgba(#000, 0.5);
  }
  
  &:after {
    color: #421F00;
    font-variation-settings: 'INLN' 0;
  }
}

@keyframes grow {
  0% {
    font-variation-settings: 'INLN' 400, 'SWRM' 1000;
  }
  
  100% {
    font-variation-settings: 'INLN' 400, 'SWRM' 0;
  }
}


//Positioning
html {
  height: 100%;
}

body {
  background: radial-gradient(ellipse at center, #adbf41 20%,#328a26 80%);
  height: 100%;
}

h1 {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  text-align: center;
  letter-spacing: 0.6rem;
  
  &:after, &:before {
    content: attr(data-text);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    z-index: -1;
    position: absolute;
    left: 0;
    top: 0;
  }
}

var h1 = document.querySelector("h1");

h1.addEventListener("input", function() {
  this.setAttribute("data-text", this.innerText);
});