* {
  color: white;
  font-family: arial;
  text-decoration: none
}

.topnav {
  background-image: linear-gradient(gray,dimgray);
  text-align: center;
  padding: 7px;
  font-size: 20px;
  border: 3px solid firebrick;
  font-weight: bold;
}

body {
  background-image: linear-gradient(crimson,darkred);
  background-attachment: fixed;
  padding: 25px;
}