td {
   font-family:cursive;
	 font-size:13px;
}

p {
   font-family:cursive;
	 font-size:13px;
}
.naglowek {
  font-size:18px;
	font-weight:bolder;
	color:blue;
  border-bottom:1px solid black;
}
#showimage {
  position:absolute;
	visibility:hidden;
	background: white;
	border:1px black solid;
	padding:10px;
	margin: 0 auto; 
	top: 50%;
  margin-top: -(X/2); 
}

html, body{
height: 100%; width: 100%;
margin: 0px; padding: 0px;
}
div#przykrycie {
height:100%;
}