I've been struggling to get the responsive buttons to show on my project. To take a step back I just used the example code from this page, but they are not showing:
http://outdoorgearalerts.com/responsive2.html
The columns collapse as expected, and if you click on the first row left corner it actually expands the child row. But I'm not seeing the button, and I'm not seeing the dtr-control class being assigned. What am I missing here? This seems so basic but I simply have not been able to figure it out. Tia.