출처: http://stackoverflow.com/questions/22413203/bootstrap-affix-back-to-top-link Now that I understand the Affix component better, I have come up with the solution. After specifying a top offset and adjusting the CSS, it's working nicely. The link will scroll into view and then "pin" to the bottom. For pages which do not have a scroll bar, the link is never enabled. I've updated the JS Fiddle (h..
