body {
  background-color: #1a1f1f;
  color: lime;
  font-family: monospace;
  margin-left: 50px;
  margin-right: 50px;
  padding: 5px;
    
}
a:link {
   color: hotpink;
  text-decoration: none;
    
}
a:visited {
  color:#1ea94efc;
    
}
a:hover {
  color: deeppink;
  background-color: #363636;
}
  
#header {
  text-align: center;
  margin-top: 20px;
  padding: 40px;
  border-style: solid;
  border-width: 3px;
  border-color: lime;
  }