center bootstrap class code example

Example 1: bootstrap center

<div class="row h-100">
   <div class="col-sm-12 my-auto">
     <div class="card card-block w-25">Card</div>
   </div>
</div>

Example 2: bootstrap row no-wrap

<div class="row flex-nowrap">
    <div class="col"></div>
    <div class="col"></div>
</div>