bootstrap class vertical align center 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>