#head_menu {width:900px;height:20px;margin:0px auto 0px auto;padding:0px; text-align:left;z-index:200;}
#head_menu {clear:left;width:100%;height:20px;margin:0px; padding:0px; background:url('img/BGmenu.gif') repeat-x;}
#menu {display:inline;}
#menu li { float:left; position:relative; list-style:none; _width:1px; z-index:100;}
#menu a.menu_head {display:block; height:16px;margin:0px; margin-top:2px; margin-bottom:2px; padding:0px; padding-left:10px; padding-right:10px; font-size:11px; font-weight:bold; color:white;text-align:center;text-decoration:none; white-space:nowrap;	border-right:1pt solid white;}
#menu li ul {display:none;position:absolute;top:20px; left:0px; width:175px;padding:0px; margin:0px; background:#DFEFFF;}
html>body #menu li ul {top:20px;} /*když toto nebylo výslovně uvedeno pro každý z prohlížečů*/
:root #menu li ul {top:20px;}     /*bylo to v každém jinak!!!                               */
#menu li ul li {width:173px; _width: 175px; ?width:175px; height:auto; overflow:hidden; margin:0px; padding:0px; border:1px solid #254E9C; border-top:none;}
#menu li ul li a { display:block; width:163px;_width:173px;?width:173px; height:auto; margin:0px; padding:3px 5px 2px 5px; text-decoration:none;  color:black; font-size:11px; font-weight:normal; background:none;}
#menu li ul li a:hover {background:#80CBFF;}
#menu li > ul {top: auto;left: auto;}
#menu li:hover ul, #menu li.over ul{display: block;}