@value xs: (min-width: 0px);@value sm: (min-width: 600px);@value md: (min-width: 960px);@value lg: (min-width: 1280px);@value xl: (min-width: 1440px);@value xs-only: (max-width: 599px);@value sm-only: (min-width: 600px) and (max-width: 959px);@value md-only: (min-width: 960px) and (max-width: 1279px);@value lg-only: (min-width: 1280px) and (max-width: 1439px);@value xl-only: (min-width: 1440px);