DateChooser with custom bottomButtonsLayout

Hi,

I am using SmartGWT 3.1 and trying to create a customized skin. I changed everything we need for the DateChooser, there is only one thing I am unable to solve. In our DateChooser the Today and Cancel buttons are shown at the bottom. These buttons also have a customized style and I would like to get some space between the buttons. I was trying to change the bottomButtonLayoutDefaults in my load_skin.js by adding a membersMargin. I also tried to add some margin to the buttons themselves, but without any success. They are still sticked together at the center of the bottom layout. How can I add some space between the buttons?

Thanks,
mikereem