Adding a CSS class to the all last menu items generated by wp_nav_menu
Today I’ve been working on one WordPress project where I needed to add CSS class to the all last menu items generated by wp_nav_menu() function. I’ve done little research on the Internet and found this article ‘Adding a CSS Class to the Last LI Generated by wp_nav_menu()‘. Works great so far, unfortunatelly it adds class just to the very last item of the list.
My task required to add CSS class to the all last menu items as follows:
<ul>
<li>Item A
<ul>
<li>Item a1</li>
<li>Item a2</li>
<li class="last">Item a3</li>
</ul>
</li>
<li>Item B
<ul>
<li>Item b1</li>
<li>Item b2</li>
<li class="last">Item b3</li>
</ul>
</li>
<li class="last">Item C</li>
</ul>
Have just bumped into the site dedicated to 
