/*
Back to top button
*/
#back-top {
  position: fixed;
  bottom: 10px;
  margin-left: 94%;
  z-index:499;
  /*IE6 hack */
    _position: absolute;
    _top:expression(documentElement.scrollTop+body.scrollTop);
    _margin-top: 500px;

}
#back-top a,  #back-top-prev a {
  width: 50px;
  display: block;
  text-align: center;
  font: 11px/100% Arial, Helvetica, sans-serif;
  text-transform: uppercase;
  text-decoration: none;
  color: #bbb;
  /* background color transition */
  -webkit-transition: 1s;
  -moz-transition: 1s;
  transition: 1s;

}
#back-top a:hover, #back-top-prev a:hover {
  color: #000;
}
/* arrow icon (span tag) */
#back-top span#button , #back-top-prev span#button-prev {
  width: 50px;
  height: 50px;
  display: block;
  margin-bottom: 7px;
  background-position: center center;
  background-repeat: no-repeat;

  background-image: url('../images/up-arrow.png') ;
  opacity:0.8;
  filter:alpha(opacity = 80);
  /* rounded corners */
  -webkit-border-radius: 8px;
  -moz-border-radius: 8px;
  border-radius: 8px;
  /* background color transition */
  -webkit-transition: 1s;
  -moz-transition: 1s;
  transition: 1s;
}
#back-top a:hover span#button, #back-top-prev a:hover span#button-prev {
  opacity:1;
  filter:alpha(opacity = 100);
}
#edit-scroll-to-top-preview {
  float:right;
  width:100%;
}