*{ margin: 0px;}

nav.navBack > a::before {
  content: "Back to ";
}
nav.navBack > a {
  color: white;
}
nav.navBack > a {
  display: inline-block;
  position: fixed;
  top: 2px;
  left: 2px;
  z-index: 2;
  margin: 0;
  padding: 4px;
  border: solid 2px darkred;
  border-radius: 16px;
  background-color: darkred;
  color: white;
}