#toTop {
  display:none;
  text-decoration:none;
  position:fixed;
  bottom:10px;
  right:10px;
  overflow:hidden;
  width:51px;
  height:51px;
  border:none;
  text-indent:100%;
  background:url(img/arrow.jpg) no-repeat left top;}

#toTopHover {
  background:url(img/arrow.jpg) no-repeat left -51px;
  width:51px;
  height:51px;
  display:block;
  overflow:hidden;
  float:left;
  opacity: 0;
  -moz-opacity: 0;
  filter:alpha(opacity=0);}

#toTop:active, #toTop:focus {
  outline:none;}