here is the HTML 
<body style="margin:80px;padding:10px;">
<div id="Stage" class="EDGE-10822169">
<div id="wrapper">
<div id="navMenu">

<ul>
<li><a href="">IL Brand</a>-
<ul>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
</ul><!--ul mrena -->

</li><!--fundi i LI -->

</ul><!--fundi i UL -->

<ul>
<li><a href="">IL Brand</a>
<ul>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
</ul><!--ul mrena -->

</li><!--fundi i LI -->

</ul><!--fundi i UL -->
<ul>
<li><a href="">IL Brand</a>
<ul>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
</ul><!--ul mrena -->

</li><!--fundi i LI -->

</ul><!--fundi i UL -->
<ul>
<li><a href="">IL Brand</a>
<ul>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
</ul><!--ul mrena -->

</li><!--fundi i LI -->

</ul><!--fundi i UL -->
<ul>
<li><a href="">IL Brand</a>
<ul>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
</ul><!--ul mrena -->

</li><!--fundi i LI -->

</ul><!--fundi i UL -->
<ul>
<li><a href="">IL Brand</a>
<ul>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
<li><a href="">il nuovo marchio</a></li>
</ul><!--ul mrena -->

</li><!--fundi i LI -->

</ul><!--fundi i UL -->

</div><!--fundi i navMenu -->


</div><!--fundi i wrapper -->

</div>
</body>


here is the CSS

@charset "utf-8";
#navMenu {
margin:0;
padding:0;
}
#navMenu ul {

margin:0;
padding:0;
line-height:30px;

}

#navMenu li {
margin:0;
padding:0;
list-style:none;
float:left;
position:relative;
}

#navMenu ul li a{
    text-align: center;
    font-family: "Comic Sans MS", cursive;
    text-decoration: none;
    height: 30px;
    width: 150px;
    display: block;
    color: rgba(27,27,27,1);


}

#navMenu ul ul{
position:absolute;
visibility:hidden;
top:30px;

}
#navMenu ul li :hover ul{
    visibility: visible;


}

can someone give me some ideas how i can fix this error i have create the slideshow with adobe edge

Can you provide the URL of where this web page is located...the code you provided is not enough to be able to determine what the problem is.

the page is not upload,can yuo give me an email so i can upload the files of my staff

remove the space between li and :hover in the css

#navMenu ul li:hover ul{

it work for the last dropdown not for all,

any idea i can be with z-index and visibility but i dont know where to put this code

i have FIX it thankyou any way you didnt help me so much ,i just set the z-index 2 in nav ul li:hover ul.

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