.button {
  font-family: sans-serif;
  font-size: 1rem;
  line-height: 1.3rem;
  background: red;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  cursor: pointer;
}

.button:hover,
.button:active {
  background: maroon;
}

.button--blue {
  background: blue;
}

.button--blue:hover,
.button--blue:active {
  background: darkblue;
}