Hi bk007
You can try this custom css:
@media (max-width: 480px) {
.t3-mainnav .t3-navbar-collapse .navbar-nav > li > .dropdown-menu {
display: block !important;
position: static;
float: none;
width: auto;
margin-top: 0;
background-color: transparent;
border: 0;
box-shadow: none;
}
}
