Hello @jquan,

Can you post your site URL so that we could provide you precise fix on this issue ??

Hope you understand.

Best Regards!!

Hello @JQUAN,

In order to reduce the size of the related post use the CSS give below.

For this go to Admin Panel > Appearance > Customize > Additional CSS and paste below given CSS.

.related.products ul.products li.product{
   width: 23.05%;
   display: inline-block;
   clear: none;
}

.related.products ul.products li.last {
   margin-right: 1.8%;
}

Hope this helps.

If you need any help further, please let us know.

Best Regards!!

Hello @JQUAN,

Glad we could help you.

If you have any issue further, please feel free to post them.

Best Regards!!