<title>Bootstrap 4 Row Columns to Quickly Create Mixed Size Columns</title>
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<h2 class="text-center">Bootstrap 4 Row Columns to Quickly Create Mixed Size Columns</h2>
<div class="row row-cols-2 row-cols-sm-3 row-cols-md-4 row-cols-lg-5">
<div class="col">col</div>
<div class="col">col</div>
<div class="col">col</div>
<div class="col">col</div>
<div class="col">col</div>