javascript おみくじアプリ #作業ログ

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />

    <link rel="stylesheet" type="text/css" href="style.css">
  </head>
  <body>

     <div id= "btn" >?</div>


     <script src="app.js"></script>
  </body>
</html>



  var btn = document.getElementById('btn');


  btn.addEventListener('click', function(){
     this.textContent = 'hits!';
  });

  #マウスがあっ立ってる時だけ

  btn.addEventListener('mousedown', function(){
     this.className = 'pushed';
  });
　#マウスが外れた時時だけ
  btn.addEventListener('mouseup', function(){
     this.className = '';
  });