#prvek {
max-height: 768px;
height:100%;
_height: expression(document.body.clientHeight > 768? "768px" : "100%" );
}
img{border:0}
#navrcholu {border:0;width:1px;height:1px;visibility:hidden}

body{margin: 0px; padding: 0px;text-align:center;}

.sipka {border:0}
span{position:relative;top:-30px}