bootstrap_ms.css.scss

// Bootstrap Mid-Small - col-ms-* - the missing grid set for Bootstrap3.
//
// LICENSE under MIT - https://github.com/twbs/bootstrap/blob/master/LICENSE
//
// Source: https://gist.github.com/seyDoggy/4f370a676f5db6df2d1d
// Forked: https://gist.github.com/andyl/6360906
//
// This is a hack to fill the gap between 480 and 760 pixels - a missing range
// in the bootstrap responsive grid structure.  Use these classes to style pages
// on cellphones when they transition from portrait to landscape.
//
// By default, the smallest column (col-xs-*) spans from 480px to 768px,
// neglecting the ever-useful 640px screen size. This snippet aims to solve
// that by limiting col-xs-* to the 480px to 640px range and adding col-ms-*
// that covers the range between 640px and 768px.
//
// This initiative was originally started by @andyl in response to this thread
// https://github.com/twbs/bootstrap/issues/10203, but I found it lacked the
// responsive utilities, container widths and other such conveniences that it
// generally raised more questions in me than it solved. Plus it didn't actually
// work well in my test cases. I'm hoping what I've done here fixes that.
//
// NOTE: Here I use SASS instead of LESS for styling.  To convert to LESS
// replace '$screen' with '@screen' and '$grid' with '@grid'.
//
// See https://github.com/twbs/bootstrap/issues/10203 for more info.
//
// Columns, offsets, pushes, pulls, visible-ms-*, hidden-ms and container-ms 
// for the ms device range, from landscape phones (640px) to tablets (768px).
//
// Note that `.col-ms-12` doesn't get floated on purpose—there's no need since
// it's full-width.

// $screen-ms variables (defined above import for $screen-xs-max override)
$screen-ms: 640px;
$screen-ms-min: $screen-ms;

// overrides default (has to be before import)
$screen-xs-max: ($screen-ms-min - 1);

// Include bootstrap
@import "bootstrap.scss";

// $screen-ms-max (defined after import to read $screen-sm)
$screen-ms-max: ($screen-sm-min - 1);

// $container-ms (defined after import to read $grid-gutter-width)
$container-ms: (592px + $grid-gutter-width);

// ms visible helper
@media (min-width: $screen-ms-min) and (max-width: $screen-ms-max) {
  @include responsive-visibility('.visible-ms');
}
.visible-ms-block {
  @media (min-width: $screen-ms-min) and (max-width: $screen-ms-max) {
    display: block !important;
  }
}
.visible-ms-inline {
  @media (min-width: $screen-ms-min) and (max-width: $screen-ms-max) {
    display: inline !important;
  }
}
.visible-ms-inline-block {
  @media (min-width: $screen-ms-min) and (max-width: $screen-ms-max) {
    display: inline-block !important;
  }
}

// ms hidden helper
@media (min-width: $screen-ms-min) and (max-width: $screen-ms-max) {
  @include responsive-invisibility('.hidden-ms');
}

// Container widths
//
// Set the container width (again), and override it for fixed navbars in media queries.

.container {
  @include container-fixed;

  @media (min-width: $screen-sm-min) {
    width: $container-sm;
  }
  @media (min-width: $screen-ms-min ) {
      width: $container-ms;
  }
  @media (min-width: $screen-md-min) {
    width: $container-md;
  }
  @media (min-width: $screen-lg-min) {
    width: $container-lg;
  }
}

// ----- common styles - from twbs/bootstrap/blob/master/less/grid.less -----

.col-ms-1,
.col-ms-2,
.col-ms-3,
.col-ms-4,
.col-ms-5,
.col-ms-6,
.col-ms-7,
.col-ms-8,
.col-ms-9,
.col-ms-10,
.col-ms-11,
.col-ms-12 {
  position: relative;
  // Prevent columns from collapsing when empty
  min-height: 1px;
  // Inner gutter via padding
  padding-left:  ($grid-gutter-width / 2);
  padding-right: ($grid-gutter-width / 2);
}

// ----- col-ms breakpoints and related classes -----

@media (min-width: $screen-ms-min) {

  .col-ms-1,
  .col-ms-2,
  .col-ms-3,
  .col-ms-4,
  .col-ms-5,
  .col-ms-6,
  .col-ms-7,
  .col-ms-8,
  .col-ms-9,
  .col-ms-10,
  .col-ms-11 {
    float: left;
  }
  .col-ms-1  { width: percentage((1 / $grid-columns)); }
  .col-ms-2  { width: percentage((2 / $grid-columns)); }
  .col-ms-3  { width: percentage((3 / $grid-columns)); }
  .col-ms-4  { width: percentage((4 / $grid-columns)); }
  .col-ms-5  { width: percentage((5 / $grid-columns)); }
  .col-ms-6  { width: percentage((6 / $grid-columns)); }
  .col-ms-7  { width: percentage((7 / $grid-columns)); }
  .col-ms-8  { width: percentage((8 / $grid-columns)); }
  .col-ms-9  { width: percentage((9 / $grid-columns)); }
  .col-ms-10 { width: percentage((10/ $grid-columns)); }
  .col-ms-11 { width: percentage((11/ $grid-columns)); }
  .col-ms-12 { width: 100%; }

  // Push and pull columns for source order changes
  .col-ms-push-1  { left: percentage((1 / $grid-columns)); }
  .col-ms-push-2  { left: percentage((2 / $grid-columns)); }
  .col-ms-push-3  { left: percentage((3 / $grid-columns)); }
  .col-ms-push-4  { left: percentage((4 / $grid-columns)); }
  .col-ms-push-5  { left: percentage((5 / $grid-columns)); }
  .col-ms-push-6  { left: percentage((6 / $grid-columns)); }
  .col-ms-push-7  { left: percentage((7 / $grid-columns)); }
  .col-ms-push-8  { left: percentage((8 / $grid-columns)); }
  .col-ms-push-9  { left: percentage((9 / $grid-columns)); }
  .col-ms-push-10 { left: percentage((10/ $grid-columns)); }
  .col-ms-push-11 { left: percentage((11/ $grid-columns)); }

  .col-ms-pull-1  { right: percentage((1 / $grid-columns)); }
  .col-ms-pull-2  { right: percentage((2 / $grid-columns)); }
  .col-ms-pull-3  { right: percentage((3 / $grid-columns)); }
  .col-ms-pull-4  { right: percentage((4 / $grid-columns)); }
  .col-ms-pull-5  { right: percentage((5 / $grid-columns)); }
  .col-ms-pull-6  { right: percentage((6 / $grid-columns)); }
  .col-ms-pull-7  { right: percentage((7 / $grid-columns)); }
  .col-ms-pull-8  { right: percentage((8 / $grid-columns)); }
  .col-ms-pull-9  { right: percentage((9 / $grid-columns)); }
  .col-ms-pull-10 { right: percentage((10/ $grid-columns)); }
  .col-ms-pull-11 { right: percentage((11/ $grid-columns)); }

  // Offsets
  .col-ms-offset-1  { margin-left: percentage((1 / $grid-columns)); }
  .col-ms-offset-2  { margin-left: percentage((2 / $grid-columns)); }
  .col-ms-offset-3  { margin-left: percentage((3 / $grid-columns)); }
  .col-ms-offset-4  { margin-left: percentage((4 / $grid-columns)); }
  .col-ms-offset-5  { margin-left: percentage((5 / $grid-columns)); }
  .col-ms-offset-6  { margin-left: percentage((6 / $grid-columns)); }
  .col-ms-offset-7  { margin-left: percentage((7 / $grid-columns)); }
  .col-ms-offset-8  { margin-left: percentage((8 / $grid-columns)); }
  .col-ms-offset-9  { margin-left: percentage((9 / $grid-columns)); }
  .col-ms-offset-10 { margin-left: percentage((10/ $grid-columns)); }
  .col-ms-offset-11 { margin-left: percentage((11/ $grid-columns)); }
}

I see this is a scss file...how do I convert this to CSS so I can add it to my website?

@deankeen: If you don't use Sass locally you can put any Sass/scss code into this web tool to convert it: http://sassmeister.com/.

thank you so much! after using the other forks of this file, I could not get it to work consistently! Either only MS would work, or everything but MS would work. You are a legend!

@abea , this file doesn't compile in sassmeister