bootstrap-4-grid-styl/stylus/bootstrap/utilities/_sizing.styl

Bootstrap 4 grid system and layout utilities using Stylus

// stylelint-disable declaration-no-important

// Width and height

$wh = {width: "w", height: "h"}

for $prop, $abbrev in $wh
  for $size, $length in $sizes
    .{$abbrev}-{$size}
      {$prop}: $length !important

.mw-100
  max-width: 100% !important
.mh-100
  max-height: 100% !important;