I'm glad to announce the release of w3-ddmenu version 1.0.
What is it?.
It's a drilldown menu fully compatible with w3.css, with an easy setting and very light.
For more details, you can visit http://github.com/lamuzzachiodi/w3-ddmenu.
I hope it is useful to the w3.css community.
Saludos,
Alejandro