body {
  font-family: arial;
  background-color: #d88d24;
}

h1 {
  border: 3px red solid;
}

.topnav {
  background-color: lightgray;
  overflow: hidden;
  font-family: arial;
  display: block;
}

.topnav a {
  float: left;
  color: gray;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 25px;
}

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

footer {
    text-align: center;
}