home page widget – product weird padding on hover

I have the widget in my home page

{{widget type="MagentoCatalogWidgetBlockProductProductsList" title="" show_pager="0"
    products_count="6" template="Magento_CatalogWidget::product/widget/content/grid.phtml"
    conditions_encoded="^[`1`:^[`type`:`Magento||CatalogWidget||Model||Rule||Condition||Combine`,`aggregator`:`all`,`value`:`1`,`new_child`:``^]^]"}}

With the layout:

but when I hover, the layout gets weird like there’s some padding:

I want it to remain the same. I added the green, yellow and pink colors to make it more clear. I’ve been trying to find what’s the reason for the hovering but for the life of me I can’t seem to get it to work. This is in the home page. The catalog product page works fine for the hovering.

test site:
https://testweb.ustrading.com/