.wp-navigation__indicator-container {
  bottom: 0;
  left: 0;
  overflow: hidden;
  pointer-events: none;
  position: absolute;
  width: 100%;
}

.wp-navigation__indicator {
  height: 9px;
  width: 100%;
  padding-top: 15px;
  transform: translateX(50%);
  transition: transform 0.15s ease;
}

.wp-navigation__indicator:after {
  content: "";
  display: block;
  height: 9px;
  width: 18px;
  margin-left: -9px;
  opacity: 0;
  background-color: #ff6500;
  border-top-left-radius: 100px;
  border-top-right-radius: 100px;
  transform: translateY(9px);
  transition: all 0.15s ease;
}

.main-nav:hover .wp-navigation__indicator:after {
  opacity: 1;
  transform: translateY(0);
}