Bootstrap 3 extra large (xl) columns

Question

In Bootstrap's LESS build can someone please tell me how to add a fifth device size, extra large (col-xl-#)?

Answer 1

You can create a other less file (for instance bootstrapxl.less), containing the following code and compile that file:

@import "bootstrap.less";

// XLarge screen
@screen-xlg:                  1600px;
@screen-xlg-min:              @screen-xlg;
@screen-xlg-hughdesktop:      @screen-xlg-min;

// So media queries don't overlap when required, provide a maximum
@screen-lg-max:              (@screen-xlg-min - 1);

//== Container sizes
// Large screen / wide desktop
@container-xlarge-desktop:      ((1540px + @grid-gutter-width));
@container-xlg:                 @container-xlarge-desktop;

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

.container {
  @media (min-width: @screen-xlg-min) {
    width: @container-xlg;
  }
}

.make-grid-xlgcolumns() {
  // Common styles for all sizes of grid columns, widths 1-12
  .col(@index) when (@index = 1) { // initial
    @item: ~".col-xlg-@{index}";
    .col((@index + 1), @item);
  }
  .col(@index, @list) when (@index =< @grid-columns) { // general; "=<" isn't a typo
    @item: ~".col-xlg-@{index}";
    .col((@index + 1), ~"@{list}, @{item}");
  }
  .col(@index, @list) when (@index > @grid-columns) { // terminal
    @{list} {
      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(1); // kickstart it
}
.make-grid-xlgcolumns();
.make-grid(xlg);

// Generate the large columns
.make-xlg-column(@columns; @gutter: @grid-gutter-width) {
  position: relative;
  min-height: 1px;
  padding-left:  (@gutter / 2);
  padding-right: (@gutter / 2);

  @media (min-width: @screen-xlg-min) {
    float: left;
    width: percentage((@columns / @grid-columns));
  }
}
.make-xlg-column-offset(@columns) {
  @media (min-width: @screen-xlg-min) {
    margin-left: percentage((@columns / @grid-columns));
  }
}
.make-xlg-column-push(@columns) {
  @media (min-width: @screen-xlg-min) {
    left: percentage((@columns / @grid-columns));
  }
}
.make-xlg-column-pull(@columns) {
  @media (min-width: @screen-xlg-min) {
    right: percentage((@columns / @grid-columns));
  }
}

Notice that instead of the .make-grid-xlgcolumns mixin in the above code you could also modify the .make-grid-columns() mixin in the less/minins/grid-framework.less file by adding the .col-xlg- class prefix.

Since BS 3.2.0 you should use the autoprefixer to make sure that your new compiled version has the same browser support as the original compiled version, see also: https://github.com/twbs/bootstrap/issues/13620 To run the autofixer for your new code replace the bootstrap.less file reference with a reference to your new bootstrapxl.less in Gruntfile.js and run grunt dist after your changes.

update

Please notice that the above solution only works when you add column classes for a larger grid. See https://stackoverflow.com/a/26963773/1596547 to add columns or grids that overlap the default grids.

Answer 2

You can download a simple small CSS file from GitHub using this link: https://github.com/marcvannieuwenhuijzen/BootstrapXL

If you add this CSS file to the HTML after the Bootstrap CSS file you will be able to use col-xl-{size}, col-xl-push, hidden-xl, etc. The media-query breakpoint is 1600px;

Update The alpha release for Bootstrap 4 is available now with native support for extra large screens. http://blog.getbootstrap.com/2015/08/19/bootstrap-4-alpha/ but it's breakpoint for extra large is still 1200px.

Update 2 (july 2017) Stop using bootstrap and start using standard CSS grids, TODAY. You can find an introduction here.

Answer 3

Twitter Bootstrap has listened You #V4 Support for Extra Large Devices Now --> http://v4-alpha.getbootstrap.com/layout/grid/#grid-options

Answer 4

https://github.com/shenders13/bootstrap-grid-100cols-with-xl-and-xxl

A CSS file that contains the bootstrap grid with additional xlg ( > 1500px width ) and xxlg ( > 2000 px width) classes. The grid is split into columns with 1/100 width of the parent div.