Hi @Anonymous ,
If it is for re use as @OOlashyn mentioned please either create your new web template and inject it in web pages where it is needed or modify the existing template. If it is for one page, you can also simply change the div structure in portal studio like below
<p>This website uses sample data for illustration purposes. You can build pages using multiple templates available.</p>
<div class="row sectionBlockLayout" style="display: flex; flex-wrap: wrap; text-align: left; min-height: 100px; padding: 8px; margin: 0px;">
<div class="container" style="display: flex; flex-wrap: wrap;">
<div class="col-md-3 columnBlockLayout" style="display: flex; flex-direction: column;"></div>
<div class="col-md-3 columnBlockLayout" style="display: flex; flex-direction: column;"></div>
<div class="col-md-3 columnBlockLayout" style="display: flex; flex-direction: column;"></div>
<div class="col-md-3 columnBlockLayout" style="display: flex; flex-direction: column;"></div>
</div>
</div>
And the output look like below:

Hope it helps.
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