.orbeon .xbl-fr-checkbox-input.xforms-required .checkbox span:before {
  font-family: FontAwesome;
  content: "\f005";
  vertical-align: super;
  line-height: 1em;
  font-size: 60%;
  margin-right: 1ch;
}
.orbeon .xbl-fr-checkbox-input.xforms-required .checkbox span > div:first-child {
  display: inline;
}