ul.umbrella li {
  list-style: none;
  display: inline-block;
  padding: 0.3em 1em;
  border-radius: 1.5em;
  border: solid 1px #2C848D;
  margin-right: 0.3em;
  margin-top: 0.7em;
}

ul.umbrella {
  /*white-space:nowrap; */
  text-align:center;
}

li.is-current-umbrella {
    background-color: #fff;   /* pick your color */
  }