canvas {
  width: 1400px;
  height: 600px;
  margin: auto;
  border: 1px black solid;
  image-rendering: pixelated; 
}

button {
  padding: 10px 20px;
  font-size: 16px;
  display: block;
  background-color: black;
  color: white;
  cursor: pointer;
 }