canvas {
 display: block;
 margin: auto;
 border: 1px solid black;
}


#playbutton { width: 200px;
 height: 40px;
 display: block;
 margin: auto;

  margin-top: 10px;
 font-family: Arial, sans-serif;
 font-size: 25px;
 font-weight: bold;

  background-color: white; cursor: pointer;
}


#TestButton { width: 200px; height: 40px;
 display: block;
 margin: auto;
 margin-top: 10px;
  font-family: Arial, sans-serif;
 font-size: 25px;
 font-weight: bold;
 background-color: white;
 cursor: pointer;
}