body {background-color: grey}
h1 {color: white;text-align: center;}
h2 {color: black;text-align: center;}
h3 {color: Blue;text-align: center;}
ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333;
}

li {
  float: left;
}

li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

/* Change the link color to #111 (black) on hover */
li a:hover {
  background-color: #111;
}
p {font-size: 20px;}