express-8.x-1.x-dev/themes/contrib/bootstrap/bootstrap.breakpoints.yml

bootstrap.screen-xs-max:
  label: screen-xs-max
  mediaQuery: 'all and (max-width: 767px)'
  weight: 1
  multipliers:
    - 1x
bootstrap.screen-sm-min:
  label: screen-sm-min
  mediaQuery: 'all and (min-width: 768px)'
  weight: 1
  multipliers:
    - 1x
bootstrap.screen-sm-max:
  label: screen-sm-max
  mediaQuery: 'all and (max-width: 991px)'
  weight: 1
  multipliers:
    - 1x
bootstrap.screen-md-min:
  label: screen-md-min
  mediaQuery: 'all and (min-width: 992px)'
  weight: 1
  multipliers:
    - 1x
bootstrap.screen-md-max:
  label: screen-md-max
  mediaQuery: 'all and (max-width: 1199px)'
  weight: 1
  multipliers:
    - 1x
bootstrap.screen-lg-min:
  label: screen-lg-min
  mediaQuery: 'all and (min-width: 1200px)'
  weight: 1
  multipliers:
    - 1x