vertical align none in boostrap class code example

Example 1: bootstrap vertical align

<div class="d-flex align-items-start">...</div>
<div class="d-flex align-items-end">...</div>
<div class="d-flex align-items-center">...</div>
<div class="d-flex align-items-baseline">...</div>
<div class="d-flex align-items-stretch">...</div>

Example 2: vertical align bootstrap

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