Module:Navpills/styles.css

/* Style the links inside the pill navigation menu */
.pill-nav a {
  display: inline-block; /* Makes them sit horizontally */
  color: black;
  text-align: center;
  padding: 14px;
  text-decoration: none;
  font-size: 17px;
  border-radius: 5px; /* Creates the pill shape */
}

/* Add a color to the active/current link */
.pill-nav a.active {
  background-color: dodgerblue;
  color: white;
}