WP Nav Menu Problem

Hi all,

I’m having problems creating the nav menu list for my website. I know there are a lot of questions asked about this but i am still not getting it right. So i registered the Primary Menu and it is ready to be used. Below is the code i am using:


<nav class="collapse navbar-collapse roddmenu-wrapper" role="navigation" id="bs-example-navbar-collapse-1">
<?php wp_nav_menu( array('theme_location' => 'primary', 'container' => false, 'menu_class' => 'nav navbar-nav rodd-menu', 'fallback_cb' => '')); ?>
</nav>


This code prints all Parent links and their associated Child links but without the drop-down capability. I.E. It prints all the children below the parent in plain view.
How can i go about hiding the children and revealing them when you hover with the cursor?