main #block-spark-content #group-menu {
  background-color: #444;
  border-bottom: 1px solid #09f;
  border-radius: 0.5rem 0.5rem 0 0;

  display: flex;
  flex-flow: row wrap;
  align-items: center;
  justify-content: center;

  margin: 0.5rem 0 1rem;
  padding: 0 1rem;
}

main #block-spark-content #group-menu a {
  display: block;
  font-size: 1.5rem;
  font-weight: 900;
  padding: 0 0.625rem;
  text-decoration: none;
  transition: background-color 0.125s, color 0.125s;
}

main #block-spark-content #group-menu a:hover {
  background-color: #09f;
  color: #fff;
}

main #block-spark-content #group-menu a:active {
  background-color: #fff;
  color: #000;
}

/**
 * Override the default toolbar theme styles.
 */
 #toolbar-item-administration-tray .toolbar-logo {
  width: 3.75rem;
}