Updated on July 04, 2019
This members-only tutorial provides the steps to add previous and next sticky tabs when viewing a single post in Oxygen. Hovering on these will slide open links to previous/next post.
You can see this in action on any single post of this site, such as this current page.
At the moment Safari does not apparently support vertical text where the letters are actually vertical. So these are going to appear with the text sideways.
On smaller screens, the links will appear "normally".
Step 1
Edit your Template for single posts in the Oxygen editor.
Add a Section at the end.
Advanced > Container Padding: 0 for top and bottom.
Step 2
Add a Code Block inside the Section.
PHP & HTML: