.button {
  margin: .4em;
  padding: .3em;
  cursor: pointer;
  background: #F7D358;
  text-decoration: none;
  color: #fff;
  border: 1px solid yellow;
  /* Prevent highlight colour when element is tapped */
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}