<div class="container">
  <div class="scrollmenu">
    <a href="#home">Home</a>
    <a href="#about">About</a>
    <a href="#portfolio">Portfolio</a>
    <a href="#services">Services</a>
    <a href="#gallery">Gallery</a>
    <a href="#support">Support</a>
  </div>
</div>

.container {
  width: 320px;
  margin: 0 auto;
}
.scrollmenu {
  background-color: #333;
  overflow: auto;
  white-space: nowrap;
}
.scrollmenu a {
  display: inline-block;
  padding: 16px;
  color: white;
  font-family: sans-serif;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
}
.scrollmenu a:hover {
  background-color: #777;
}