Style Switcher/span class works fine for images but not text...?

[wygolvillage]

For context, I am using the code from this site. I had previously tested it out before and it worked great! I intend to use span class and the style switcher to switch out text and images depending on what the "viewer" selects... But there's one problem, as I implemented this over on the actual page I'm building for this project, it now doesn't work... Well, it displays the images I'm switching out with span class just fine, but none of the text displays...?

Here's the page I'm trying to implement this on. I actually intend to have the style switcher on a different page once I'm done with my layout and everything, but I'm focusing on just this one page for now.

Here's one of the stylesheets as well.

It's really frustrating since I have no idea what I'm doing wrong. I'm doing everything exactly the same as I did before when I was testing it out. And clearly the switcher works, since it switches the images just fine.