#canvas {
  display: block;
  width: 1400px;
  height: 800px;
  margin: 0 auto;
}

#control {
  position: absolute;
  margin: 20px;
}

.test-btn {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 24px;
  border: 3px solid rgb(30, 180, 100);
  border-radius: 5px;
  color: rgb(30, 180, 100);
  text-transform: uppercase;
  padding: 15px;
  margin: 20px 0;
}

.test-btn:hover {
  cursor: pointer;
  color: #fff;
  background-color: rgb(30, 180, 100);
}

body {
  overflow: hidden;
}