Is there any chance to implement code change, which will name class of each inserted button differently? Instead naming them all same DD_BUTTON use number for example like DD_BUTTON1, DD_BUTTON2 etc.
Actual implementation doesnt allow custom styling for buttons, which could be quite usefull. For example now facebook like is translated to appropriate language you have registered in your FB profile and its often longer than basic Like text. So 90px width is not enough to fit in whole button and also count.
Or instead allow to define custom width for each button in admin part. Would help a lot!