Result Size: 300 x 150
x
 
<!DOCTYPE html>
<html>
<body>
<p id="demo"></p>
<script>
var str = "Hello";
var arr = str.split("");
var text = "";
var i;
for (i = 0; i < arr.length; i++) {
  text += arr[i] + "<br>"
}
document.getElementById("demo").innerHTML = text;
</script>
</body>
</html>