What CSS do I use?

Hi there,

Any chance you can link us to the site in question?

You can use the private information field.

Let me know :)

Yes, I've linked below.

Hi there,

You can try this CSS:

.entry-meta .posted-on {
    text-align: left;
}

.entry-meta .author-wrap {
    text-align: right;
}

.entry-meta {
    flex-direction: row-reverse;
}

It will look like this: https://share.getcloudapp.com/eDu8vnYP

Is there some PHP I'd need to do as well? My staging site isn't showing right. It still shows the same way.

Here's all the PHP snippets involved.
https://docs.generatepress.com/article/entry-meta-style/#example-3

We may have to change the CSS involved in it.

Looks like I was able to do as is in the attachment. Thank you!

Nice one. Glad you got it sorted. :)