[Plugin: upPrev Previous Post Animated Notification] Controlled resting position

Hello,

I am looking to nest this plugin within a div so that the flyout position doesn’t go all the way to the edge of the window. Is there a proper/simple way to do this?

Ideally, the flyout would come from the side (hidden position) and land about 100px from the left of the browser window.

Thanks!

http://ww.wp.xz.cn/extend/plugins/upprev-nytimes-style-next-post-jquery-animated-fly-in-button/