body {
  font-size: 1.5em;
  font-family: arial;
}

a {
  text-decoration: none;
  color: #007bff;
  padding: 0.3em 0.6em;
  display: inline-block;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
  border: 1px solid #dee2e6;
  display: inline-block;
  border-radius: 3px;
}

ul > li {
  border-right: 1px solid #dee2e6;
  display: inline-block;
}

ul > li:last-child {
  border: none;
}

ul > li:hover {
  background: #e9ecef;
}