div {
  width: 300px;
  border: 15px darkred;
  padding: 50px;
  margin: 20px;
}


a:link {
  color: darkred;
  background-color: transparent;
  text-decoration: none;
}

a:visited {
  color: pink;
  background-color: transparent;
  text-decoration: none;
}

a:hover {
  color: red;
  background-color: transparent;
  text-decoration: underline;
}

a:active {
  color: gray;
  background-color: transparent;
  text-decoration: underline;
}