Offsetting columns using Margin utilities in Bootstrap

<div class="container">
  <div class="row">
    <div class="col-md-4">.col-md-4</div>
    <div class="col-md-4 ml-auto">.col-md-4 .ml-auto</div>
  </div>
  <div class="row">
    <div class="col-md-3 ml-md-auto">.col-md-3 .ml-md-auto</div>
    <div class="col-md-3 ml-md-auto">.col-md-3 .ml-md-auto</div>
  </div>
  <div class="row">
    <div class="col-auto mr-auto">.col-auto .mr-auto</div>
    <div class="col-auto">.col-auto</div>
  </div>
</div>

References
https://getbootstrap.com/docs/4.3/layout/grid/#margin-utilities