Edit in JSFiddle

<div>
<a href="#" data-content="Menu 1">Menu 1</a> | <a href="#" data-content="Menu 2">Menu 2</a> | <a href="#" data-content="Menu 3">Menu 3</a> | <a href="#" data-content="Menu 4">Menu 4</a> | <a href="#" data-content="Menu 5">Menu 5</a>
</div>
div a {
  position: relative;
  display: inline-block;
  font-weight: bold;
  color: #ffffff;
  text-decoration: none;
  font-family: Arial, Sans-Serif;
}
div a:hover {
  position: relative;
  display: inline-block;
  font-weight: bold;
  color: #000000;
}
div a:after {
  content: attr(data-content);
  position: absolute;
  font-weight: normal;
  left: 0;
  top: 0;
  text-align: center;
  width: 100%;
  color: #000000;
}