body {
  /* background: transparent; */
}

button#myButton {
  display: block;
  width: 200px;
  height: 50px;
  margin: 20px auto;
  background-color: #4caf50; /* Green */
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  transition-duration: 0.4s;
  cursor: pointer;
  border: none;
}

button#myButton:hover {
  background-color: #45a049;
}