.sp-megamenu-parent >li >a:before {
  content: "";
  position: absolute;
  bottom: 18px;
  left: 50%;
  width: 0;
  height: 2px;
  background: #6ad7ff;
  -moz-transition: all 400ms ease-in-out;
  -o-transition: all 400ms ease-in-out;
  -webkit-transition: all 400ms ease-in-out;
  transition: all 400ms ease-in-out;
}