LoganMacEachern29.github.io/Balloon.html at main · LoganMacEachern29/LoganMacEachern29.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <p id="balloon">🎈</p>

<script>
  let balloonEl = document.getElementById("balloon");
  let fontSize = 10;
  balloonEl.style.fontSize = fontSize + "px";
  function handleKeyDown(event) {
    if (event.key == "ArrowUp"){
      fontSize *= 1.1;
      balloonEl.style.fontSize = fontSize + "px";
      event.preventDefault();
   }
    if (event.key == "ArrowDown"){
    fontSize /= 1.1;
      event.preventDefault();

    }

 }
  window.addEventListener("keydown", handleKeyDown)
</script>
</body>
</html>