.container
  margin 0 auto
  position relative
  +from($desktop)
    max-width $desktop - (2 * $gap)
    width $desktop - (2 * $gap)
    &.is-fluid
      margin-left $gap
      margin-right $gap
      max-width none
      width auto
  +until($widescreen)
    &.is-widescreen
      max-width $widescreen - (2 * $gap)
      width auto
  +until($fullhd)
    &.is-fullhd
      max-width $fullhd - (2 * $gap)
      width auto
  +from($widescreen)
    max-width $widescreen - (2 * $gap)
    width $widescreen - (2 * $gap)
  +from($fullhd)
    max-width $fullhd - (2 * $gap)
    width $fullhd - (2 * $gap)