.offscreen a, .offscreen a:hover, .offscreen a:visited
{
position:absolute;
left:0px;
top:-500px;
width:1px;
height:1px;
overflow:hidden;
}
  
.offscreen a:active, .offscreen a:focus
{
color: #214183;
text-decoration: none;
position:static;
width:auto;
height:auto;
}

.button-left
{
position:fixed; 
top:1px; 
right:75px;
border: 0px;
color: transparent;
}

.button-mid
{
color: transparent;
position:fixed; 
top:0px; 
right:47px;
border: 0px;
}

.button-right
{
color: transparent;
position:fixed; 
top:0px; 
right:9px;
border:0px;
}