sprawdź to menu nie ma z nim żadnego problemu a śmiga wszędzie:
<ul id="nav">
<li> <a href="
<?php print $url; ?>">Zawartość</a>
<ul>
<li><a href="
<?php print $url; ?>">Aktualności </a>
<ul>
<li><a href="
<?php print $url; ?>">Dodaj</a></li>
<li><a href="
<?php print $url; ?>">Lista</a></li>
</ul>
</li>
<li><a href="
<?php print $url; ?>">Podstrony</a>
<ul>
<li><a href="
<?php print $url; ?>">Dodaj</a></li>
<li><a href="
<?php print $url; ?>">Lista</a></li>
</ul>
</li>
<li><a href="
<?php print $url; ?>">Newsletter</a>
<ul>
<li><a href="
<?php print $url; ?>">Wyślij</a></li>
<li><a href="
<?php print $url; ?>">Lista</a></li>
</ul>
</li>
</ul>
</li>
</ul>
<ul id="nav">
<li> <a href="
<?php print $url; ?>wyloguj.php">Wyloguj</a></li>
</ul>
i css:
/* menu */
#nav{list-style: none; }
#nav ul {
padding: 0;
margin+top:0;
list-style: none;
z-index:99;
position:relative;
overflow:visible;
width:120px;
position: absolute;
}
#nav li {
margin:0;
position: relative;
float:left;
width: 12em;
background-color:#434242;
border:solid 1px #434242;
display:block;
height:auto;
width:120px;
}
#nav ul li{ background-color:#434242;
border-top-style:solid;
border-bottom-style:solid;
border-left-style:solid;
border-right-style:solid;
border-top-width:1px;
border-bottom-width:1px;
border-left-width:1px;
border-right-width:1px;
width:120px;
}
#nav ul li{ border-width:1px 1px 0 0;}
#nav ul ul li{ border-width:1px 1px 0 1px;}
#nav ul ul li:last-child{border-width:1px;}
#nav a {
text-decoration:none;
display:block;
padding: 0.1em;
margin:0.2em 0 0.2em 0.1em;
width:117px;
height:1.05em;
color:#fff;
font-family: Arial;
font-size:11px;
}
#nav a:hover, #nav li:hover{ background-color:#434242; }
#nav ul li:hover, #nav ul li a:hover{ background-color:#434242; }
#nav ul{ display:none; }
#nav ul ul, #nav ul ul ul{
display:none;
position:absolute;
margin-top:-3.8em;
margin-left:120px;
}
#nav ul li>ul, #nav ul ul li>ul{ margin-top:-1.35em; }
#nav li:hover ul ul, #nav li:hover ul ul ul, #nav li:hover ul ul ul ul,
#nav li:hover ul ul ul ul ul{
display:none;
}
#nav li:hover ul, #nav ul li:hover ul, #nav ul ul li:hover ul, #nav ul ul ul
li:hover ul, #nav ul ul ul ul li:hover ul{
display:block;
}
li>ul { top: auto; left: auto; }
/* ELEMENTY STRONY */
li {
padding:3px;
}
ol, ul {
list-style: none;
}
/* reset */
html, body, div, applet, object,
h1, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center, ul, li,
fieldset, label,
caption, tbody, tfoot, thead, tr, th, td {
margin: 0;
padding: 0;
border: 0;
outline: 0;
font-size: 100%;
vertical-align: baseline;
background: transparent;
background-position: 0 0;
background-repeat: no-repeat;
}