some.css

<style type="text/css">
	.first-level .dropdown:hover .advertise-wrap,
	.first-level .dropdown:hover .advertise-wrap > .dropdown-menu {
		display: block;
	}
	
	    .first-level .dropdown:hover > a {
	        background-color: #eaeaea !important;
	    }
	
	    .first-level .dropdown-submenu:hover > a {
	        background-color: #dddddd !important;
	        color: #069 !important;
	    }
</style>