thoughtbot/bourbon — pull request #292 by audetpascale (2013-10-23 02:40:02+00:00)
Title: Add input button types as variable

To get all input button types, you must use interpolation on the variable:

#{$all-button-inputs}
#{$all-button-inputs-hover}
#{$all-button-inputs-focus}
#{$all-button-inputs-active}