bootstrap d-flex justify-content-center code example
Example 1: bootstrap justify-content-center for md
<div class="row justify-content-md-center"></div>
Example 2: alighn right boostrap 4
<div class="float-left">Float left on all viewport sizes</div><br>
<div class="float-right">Float right on all viewport sizes</div><br>
<div class="float-none">Don't float on all viewport sizes</div>
Example 3: bootstrap justify-content-center for lg
<div class="row justify-content-lg-center"><div>