Grow

            @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;
  font-family: "Decovar Regular24";
  font-variation-settings: "INLN" 400, "SWRM" 1000;
  -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(42, 67, 8, 0.4);
  -webkit-animation: grow 3s linear infinite alternate;
          animation: grow 3s linear infinite alternate;
}
h1:before {
  text-shadow: 1px 1px 2px rgba(42, 67, 8, 0.5), -1px 1px 2px rgba(42, 67, 8, 0.5), -1px -1px 2px rgba(42, 67, 8, 0.5), 1px -1px 2px rgba(42, 67, 8, 0.5), 3px 3px 20px rgba(0, 0, 0, 0.5);
}
h1:after {
  color: #421F00;
  font-variation-settings: "INLN" 0;
}

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

@keyframes grow {
  0% {
    font-variation-settings: "INLN" 400, "SWRM" 1000;
  }
  100% {
    font-variation-settings: "INLN" 400, "SWRM" 0;
  }
}
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;
}
h1:after, h1: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);
});