The page contains two buttons, from twitter and from facebook.
What I\'m observing in Firefox 3.5.15 is:
Found the style that is pushing it down ..
If you use FireBug and scroll down to the iframe within the FB button.
This CSS style
.fb_iframe_widget iframe
has this element
vertical-align: text-bottom;
That's the one who's pushing it down.
You can override the CSS style with the following combo of selector and !important
.twitter-share-button[style] { vertical-align: text-bottom !important; }