body {
  background-color: white;
  color: black;
  font-family: Verdana;
}

h1 {
      color: blue;
      }
ul {
  font-size: 15px;
  background-color: red;
  color: white;
}

.navigation {
  background-color: yellow;
  overflow: hidden;

}

.navigation a {
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.navigation a:hover {
  background-color: #ddd;
  color: black;
}