Section is used to create a section of contents. It add some padding space at top and bottom.
Please check demo here:
https://demo.drupar.com/mahipro/elements/basic-elements/section
Section
<div class="section">
-- you content here --
</div>Section Small
<div class="section-small">
-- you content here --
</div>Section Large
<div class="section-large">
-- you content here --
</div>