Center my categories and titles on mobile "topics page" (screen shot included)

Site URL: https://www.recaprabbithole.com/

How do I center all of these words that are on the left by default on mobile only?

Link to page:https://www.recaprabbithole.com/topics

Can you share link to page in screenshot?

2 minutes ago, tuanphan said:

Can you share link to page in screenshot?

Edited, sorry, thanks!

2 minutes ago, RecapRabbitHole said:

Edited, sorry, thanks!

Add to Home > design > Custom CSS

@media screen and (max-width:767px) {
div#block-yui_3_17_2_1_1587306875778_6840 * {
    text-align: center;
}
}