Pure CSS Editable Text | CSS Blur Effects

SOURCE CODE
<!DOCTYPE html>
<html>
<head>
	<title>Editable Text with Blur Effect</title>
	<style>
html { height: 100%; }
body {
  margin: 0;
  width: 100%;
  height: 100%;
  text-align: center;
  font-family:"helvertica", "Lucida Grande", Lucida, Verdana, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: hsl(210,50%,20%);
  background: url(bg.png), linear-gradient(90deg, hsl(210,40%,12%), hsl(210,40%,20%), hsl(210,40%,12%));
  /*background: url(bg.png), linear-gradient(90deg, hsl(210,40%,12%), hsl(210,40%,20%), hsl(210,40%,12%));*/
}
.txt[contenteditable] {
  outline: none;
}
/* Box ------------------------------------------------------ */
#box {
  /*padding: 50px;*/
  padding: 30px;
  font-size: 5em;
  font-weight: bold;
}
/* txt ------------------------------------------------------ */
.txt {
  color: hsla(0,0%,0%,0);
  text-shadow: #fff 0 0 60px;
  transition: text-shadow 2s cubic-bezier(0, 1, 0, 1);
}
#box:hover .txt {
	text-shadow: #fff 0 0 5px;
	transition: text-shadow 1s cubic-bezier(0, 0.75, 0, 1);
}
/* ♥ ------------------------------------------------------ */
.heart {
 	margin: 0 10px;
 	color: hsla(0,0%,0%,0);
 	text-shadow: red 0 0 5px;
 	transition: text-shadow 1s cubic-bezier(0, 1, 0, 1);
}
#box:hover .heart {
	text-shadow: red 0 0 100px;
	transition: text-shadow 2s cubic-bezier(0, 0.75, 0, 1);
}
	</style>
</head>
<body>
	<div id="box">
		<span class="txt">I</span>
  <span class="heart">❤</span>
  <span class="txt" contenteditable spellcheck="false">BLUR</span>
</body>
</html>
Pure CSS Editable Text | CSS Blur Effects | Html and CSS

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