html, body {
  padding: 0;
  margin: 0;
  font-size: 1em;
}
a {
  text-decoration: none;
  color: #000;
  display: block;
  padding: 10px 20px;
  border-bottom: 1px solid #999;
  background-color: #ccc;
  white-space: nowrap;
}
a:hover {
  background-color: #999;
  color: #fff;
}