a {
  color: #ffff00;
  background-color: black;
  font-family: Verdana, sans-serif;
  margin-top: 0px;
  margin-bottom: 0px;
  text-decoration: none;
}

a:hover {
  color: black;
  background-color: white;
  font-family: Verdana, sans-serif;
  margin-top: 0px;
  margin-bottom: 0px;
  text-decoration: none;
}

h1 {
  font-size: 18px;
  font-weight: bold; 
  font-family: Verdana, sans-serif;
}