Ghost Pro - How do you hide articles from code injection?

This might be related to this topic:

But as an alternative, you can target specific pages from the site code injection, the <body> will have a page-specific class. For example, in the demo, the Style guide page will have a page-style-guide class on the body. So in you code injection you can do this:

<style>
.page-style-guide .post-link {
   display:none
}
</style>