<div class="container">

  <div class="row">

    <div class="col-md">

      One of three columns

      <div class="card">

        <div class="card-header">Header</div>

        <div class="card-body">

          <div data-mdb-chart="doughnut" data-mdb-dataset-label="Traffic" data-mdb-dataset-data="[2112, 2343, 2545]" data-mdb-dataset-background-color="['rgba(233, 30, 99, 0.5)', 'rgba(66, 73, 244, 0.4)', 'rgba(66, 133, 244, 0.2)']">

          </div>

        </div>

      </div>

    </div>

    <div class="col-md">

      One of three columns

    </div>

    <div class="col-md">

      One of three columns

    </div>

  </div>

</div>

​

​