What's the effect of ui-g-nopad?

Question

I would like to know what's the effect of "ui-g-nopad". I see it a lot in the code of an application and I can't understand what it does exactly, cause the result is always the same if I put it or not.

<div class="ui-g ui-g-nopad">
...
</div>

I read doc ( https://www.primefaces.org/showcase/ui/panel/grid.xhtml ) but it's not really explicit neither...

Thank you for your help.

Answer 1

from the primeng.css file:

.ui-g-nopad {
    padding: 0;
}

This means it uses CSS to set padding to zero.