html, body {
  margin: 0;
  padding: 0;
}
canvas {
  display: block;
}

button {
  position: relative;
  display: inline-block;
  padding: 15px 30px;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 4px;
  text-decoration: none;
  font-size: 24px;
  overflow: hidden;
  transition: 0.2s;
  outline: none;
  border: none;
  border-radius: 5px;
  background: #32ebd2;
}

button:hover {
  color: #ffffff;
  background: #32ebd2;
  box-shadow: 0 0 10px #32ebd2, 0 0 40px #32ebd2, 0 0 80px #32ebd2;
  cursor: pointer;
}