#menu_poziome {clear:both;height:50px;text-align:center;}
#menu_poziome ul {margin:0 auto;width:100%;}
#menu_poziome ul li {display:inline;}
#menu_poziome ul a {
	display:block;
	float:left;
	width:120px;
	margin-top:5px;
	margin-left:10px;
	padding:7px;
	border-radius: 20px / 20px;
	background:lightgrey;
	text-decoration:none;
	color:black;
	font-weight:bold;
}
#menu_poziome ul a:hover {font-weight: bold;background:#1f356a;color:white;transition: 0.6s;}