Preview:
var $sticky = $(".sticky-column").stickit({				
  scope: StickScope.Parent,				
  top: 20,
  screenMinWidth: 980
});	

$sticky.bind('stickit:end', function () {
  $('.sticky-column').addClass('bottom-0');
});
$sticky.bind('stickit:stick', function () {
  $('.sticky-column').removeClass('bottom-0');
});

https://github.com/emn178/jquery-stickit
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Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!

Click to optimize width for Twitter