Hi there,
Is there a specific section I should be looking at?
I’m not see the content in your screenshot on your page.
But two options for applying CSS to certain page:
1) Use Tom’s Simple CSS plugin so it gives you a CSS metabox for each page.
2) Do something like this:
.page-id-xx h5 {
color: #fff;
}
Let me know if this helps 🙂