.hq-icon-category-atv::before {
  content: url(../images/icon/icon_ATV.png);
}
.hq-icon-category-pump::before {
  content: url(../images/icon/icon_Pumps.png);
}

.hq-icon-category-stand-on-mowers::before {
  content: url(../images/icon/icon_StandOn.svg);
  display:block;
  width:40px;
  height:40px;
}