Issue #7557 Apply correct styling to hollow button group
Issue #7557 Apply correct styling to hollow button group

Added logic to test for a hollow property within the button-fill variable. If it is present, applies the correct hollow styling to the buttons, even if there is a wrapping color class such as secondary or primary. Also fixes the transparent border being applied to non-stacked and stacked button groups.
jamesstoneco/foundation-sites,sethkane/foundation-sites,sashaegorov/foundation-sites,atmmarketing/foundation-sites,IamManchanda/foundation-sites,BerndtGroup/TBG-foundation-sites,getoutfitted/reaction-foundation-theme,getoutfitted/reaction-foundation-theme,abdullahsalem/foundation-sites,Iamronan/foundation,sethkane/foundation-sites,sethkane/foundation-sites,zurb/foundation,dimamedia/foundation-6-sites-simple-scss-and-js,samuelmc/foundation-sites,dragthor/foundation-sites,dimamedia/foundation-6-sites-simple-scss-and-js,dragthor/foundation-sites,jeromelebleu/foundation-sites,ucla/foundation-sites,socketz/foundation-multilevel-offcanvas,jamesstoneco/foundation-sites,IamManchanda/foundation-sites,PassKitInc/foundation-sites,abdullahsalem/foundation-sites,Iamronan/foundation,Iamronan/foundation,IamManchanda/foundation-sites,brettsmason/foundation-sites,pdeffendol/foundation,karland/foundation-sites,atmmarketing/foundation-sites,jeromelebleu/foundation-sites,denisahac/foundation-sites,designerno1/foundation-sites,karland/foundation-sites,getoutfitted/reaction-foundation-theme,jaylensoeur/foundation-sites-6,pdeffendol/foundation,DaSchTour/foundation-sites,denisahac/foundation-sites,sashaegorov/foundation-sites,aoimedia/foundation,designerno1/foundation-sites,zurb/foundation-sites,designerno1/foundation-sites,zurb/foundation,ucla/foundation-sites,colin-marshall/foundation-sites,jaylensoeur/foundation-sites-6,samuelmc/foundation-sites,natewiebe13/foundation-sites,DaSchTour/foundation-sites,jeromelebleu/foundation-sites,Owlbertz/foundation,BerndtGroup/TBG-foundation-sites,aoimedia/foundation,Owlbertz/foundation,andycochran/foundation-sites,Owlbertz/foundation,dragthor/foundation-sites,andycochran/foundation-sites,samuelmc/foundation-sites,aoimedia/foundation,ucla/foundation-sites,natewiebe13/foundation-sites,brettsmason/foundation-sites,jamesstoneco/foundation-sites,sashaegorov/foundation-sites,Owlbertz/foundation,PassKitInc/foundation-sites,atmmarketing/foundation-sites,pdeffendol/foundation,pdeffendol/foundation,natewiebe13/foundation-sites,andycochran/foundation-sites,PassKitInc/foundation-sites,colin-marshall/foundation-sites,brettsmason/foundation-sites,zurb/foundation-sites,denisahac/foundation-sites,jaylensoeur/foundation-sites-6,colin-marshall/foundation-sites,zurb/foundation-sites,socketz/foundation-multilevel-offcanvas,abdullahsalem/foundation-sites,zurb/foundation,BerndtGroup/TBG-foundation-sites,karland/foundation-sites,socketz/foundation-multilevel-offcanvas