<style type='text/css' scoped='scoped'>
#ScrollToTop{text-align:center;position:fixed; bottom:5px;right:8px;cursor:pointer;display:none}
</style>
<div id='ScrollToTop'><img alt='Back to top' src='http://3.bp.blogspot.com/-x5tFbM2NA1I/UtFclYWFezI/AAAAAAAABSc/-aZgMrnnw_c/s1600/Top.png'/></div>