Using the basic built-in to RW dropdown menus I had a couple questions

Classic
16

If you are talking about the mobile menu than I added I rem of left padding here:

/* This sets the Dropdown menu background color Full width menu */
.has-dropdown .dropdown-menu{
	background-color: rgba(0,0,190,.6);
}
/* z-index for navbar so background goes over heading */
#navbarNav {
	z-index: 1;

}
	

@media (max-width:991px) {
	/* This sets the n menu background color for mobile menu */
	#navbarNav {
		background-color: rgba(0,0,190,.6);
		padding-left: 1rem;
	}
	/* This sets the Dropdown(sub)menu color mobile menu */
	.has-dropdown .dropdown-menu{
	background-color: rgba(0,0,0,0.0);
       }
}