data-bootstro-step=4 (starting from 0)" data-bootstro-placement="bottom" > Yay. Finally bootstro now supports Bootstrap 3, after a very very long procrastination. Good news is Every thing still stays the same. You pretty much don't need to change anything Latest Bootstro.js still works with Bootstrap 2 by adding the following 1 single line bootstro.set_bootstrap_version(2); before calling bootstro