.wy-menu.wy-menu-vertical a.reference.external::after {
  /* \00a0 = no break space */
  content: "\00a0\f08e";
  font-family: FontAwesome;
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;

}