Demo 1: basic
one
sub one
sub two
sub three
two
b sub one
b sub two
b sub three
b sub four
b sub five
three
sub one
sub two
sub three
Demo 2: one at a time
one
sub one
sub two
sub three
two
b sub one
b sub two
b sub three
b sub four
b sub five
three
sub one
sub two
sub three
Demo 3: auto-close
one
sub one
sub two
sub three
two
b sub one
b sub two
b sub three
b sub four
b sub five
three
sub one
sub two
sub three