css - Order columns through Bootstrap4

Question

I have 3 columns which I want to order in different ways on desktop and mobile. Currently, my gird looks like this:

<div class="row">
  <div class="col-xs-3 col-md-6">
    1
  </div>
  <div class="col-xs-3 col-md-6">
    2
  </div>
  <div class="col-xs-6 col-md-12">
    3
  </div>
</div>

Answer 1

2021 - Bootstrap 5

The responsive ordering classes are now order-first, order-last and order-0 - order-5

Demo

2018 - Bootstrap 4

The responsive ordering classes are now order-first, order-last and order-0 - order-12

The Bootstrap 4 **push** **pull** classes are now `push-{viewport}-{units}` and `pull-{viewport}-{units}` and the `xs-` infix has been removed. To get the desired 1-3-2 layout on mobile/xs would be: [Bootstrap 4 push pull demo](http://www.codeply.com/go/OmrcmepbUp) (This only works pre 4.0 beta)

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Bootstrap 4.1+

Since Bootstrap 4 is flexbox, it's easy to change the order of columns. The cols can be ordered from order-1 to order-12, responsively such as order-md-12 order-2 (last on md, 2nd on xs) relative to the parent .row.

<div class="container">
    <div class="row">
        <div class="col-3 col-md-6">
            <div class="card card-body">1</div>
        </div>
        <div class="col-6 col-md-12 order-2 order-md-12">
            <div class="card card-body">3</div>
        </div>
        <div class="col-3 col-md-6 order-3">
            <div class="card card-body">2</div>
        </div>
    </div>
</div>

Demo: Change order using order-* classes

Desktop (larger screens):

Mobile (smaller screens):

It's also possible to change column order using the flexbox direction utils...

<div class="container">
    <div class="row flex-column-reverse flex-md-row">
        <div class="col-md-8">
            2
        </div>
        <div class="col-md-4">
            1st on mobile
        </div>
    </div>
</div>

Demo: Bootstrap 4.1 Change Order with Flexbox Direction

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Older version demos
demo - alpha 6
demo - beta (3)

See more Bootstrap 4.1+ ordering demos

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Related
Column ordering in Bootstrap 4 with push/pull and col-md-12
Bootstrap 4 change order of columns

A-C-B A-B-C