How to center Category Filter JS Links

My goal is to have the clickable links that filter a portfolio/post grid to be centered on the page, rather than justified left.

I swear I have done this before, but no matter what selector I pick, I cannot get the categories to visually center in the page. Can you point me to the way you had intended for such control to be handled?

I see a couple options:
.av-portfolio-grid-sorting-container .avia_sortable_active
and
.sort_width_container .av-sort-yes

I would imagine you don’t want me grabbing onto the JS class, but I cannot get the others to work, either.