Unable to center element horizontally and vertically

I’m making my personal website (available at https://wnetmc.github.io/ and all my code is on https://github.com/wnetMC/wnetmc.github.io) and I think i broke something because the text “wnet” and the links are not centered anymore. Yet I am using

<div class="content d-flex align-items-center">

and

<div class="container text-center">

I know this question will get downvoted to hell but if someone could answer, id really appreciate it. Thank you.

edit: entire website seems to be broken on github pages, but works fine when i download it… I don’t know what’s happening.