#glossary-alpha-block li a {
  margin: 0 5px;
  padding: 5px 10px;
  text-decoration: none;
  color: #333;
  border: none;
  border-radius: 3px;
  background: #bbb;
}

#glossary-alpha-block li a.active {
  text-decoration: unset;
  color: #fff;
  background: #187bb8;
}

#glossary-alpha-block ul {
  display: inline-block;
  padding: 0;
}

#glossary-alpha-block li {
  float: left;
  list-style: none;
}