Attach to Content & Stop at footer

Hi there,

I’ve got two issues.

1) How do I attached the Vertical Floating buttons to the article content? Current it positions itself just under the navigation even though I’d specified the class it should be attached to, which is .post-content. I’d also rather not enter a px or % from Top as my hero image is responsive and dependent on the height of the window.

2) How do I stop the Vertical Floating buttons at the bottom of .post-content class? Currently it floats over the footer which I’d like to stop.

Is there some jquery that could solve either of this?

Thanks.

The page I need help with: [log in to see the link]