Text/Image Alignment Issues

First off, I do know how to make text wrap around images, and how to align text in certain ways (left, right, center, etc.).

My website is anatiala.com. My problem is that, after doing a ton of fine-tuning on the website, including installing the plug-ins Autoptimize and WP Super Cache, and then revising of a lot of content, I realized that text will no longer wrap around my images, and that the lines on my home page, which should be centered, are left-aligned.

I revised my content using the hemingwayapp; copied and pasted chunks of words into the old posts and then updated. I think this might have something to do with it, just because there was no issue with alignment when I first installed the new plug-ins.

I would really appreciate it if someone could help me out with this. I don’t know much about coding, but I’ve deactivated the plug-ins and rewrote the About page from scratch. Despite the rewrite and the plug-in deactivation, there is still a text-wrapping issue. Despite re-centering the sentences on my home page, they are still showing up as left-aligned. I’ve cleared my browser, and I cleared the cache before I deactivated WP Super Cache.

From some reading, it seems it might be a CSS issue? I don’t know how to deal with this.

Thank you again for any help and advice. I’m currently in Madagascar, so my replies might be late (7 hours ahead of EST).