body {
  background-color: grey;
  color: white;
  font-family: Verdana;
}
a:link {
  color: red;
}
a:visited {
  color: blue;
}

a:hover {
  color: fuchsia;
}
.enl{
  position:fixed;
  opacity:0;
  }
  
.enl:hover{
  opacity:1;
  }