Image Effect and Page Builder

I built a Page Builder module, which is composed by several lines of four image each.
The image are centered.
All works fine.
But when, within Page Builder, I apply an Image Effect effect (Apollo), the images become aligned to left.
This makes the module not balanced, especially on smartphone.
I can't point out how to fix this problem. Can anyone help me?
You can find my site (under construction) here: www.claudioromeo.it

Hi
you can add this CSS rule into your page/template
CEd

I inserted the code into the Template Creator CK custom CSS, but nothing changed.

the first line of your file is not correct, you have missed the /
/*****
and not
*****

just write the code that I have given to test, remove your comment

%&!!@ (it's in Italian, so you cannot know it's a curse word)
I'm really getting too old...