hello im trying to make my card like this :
http://prntscr.com/iazya3

but it didnt work i tried flexbox and no good

it's like this now :

http://prntscr.com/ib00a4

my code :

 <div class="row">
 <div class="col-md-12">
 <div class="card mdb-color lighten-2 text-center z-depth-2">
 <div class="card-body">
 <p class="white-text mb-0">واحد جنيه سوداني = <?php echo convertCurrency("1.00", "SDG", "USD")." دولار امريكي";?>.</p>
 </div>
 </div>
 </div>
 <div class="col-md-12">
 <div class="card mdb-color lighten-2 text-center z-depth-2">
 <div class="card-body">
 <p class="white-text mb-0">بتكوين <i class="fa fa-bitcoin" aria-hidden="true"></i> = <?php echo $info['rate']." جنيه سوداني";?></p>
 </div>
 </div>
 </div>
</div>

any idea?