@media screen and (max-width: 967px) {
  .dropdown .site-nav-dropdown {position: relative !important; left: 0; }
  .menu-tool ul li.dropdown>a:before { display: none; }
  
  .site-nav li> a i { display:none}
}

@media screen and (max-width: 767px) {
  .dropdown .site-nav-dropdown {position: relative !important; }
}