Question

I have a problem with Firefox I have a drop down menu at the top of my website this is the code for the CSS

#zone-bar {
background:#E5E5E5;
min-height:30px;
z-index:10;
padding:5px 10px 0;
}
#zone-bar ul li {
float:left;
height:18px;
margin-right:10px;
position:relative;
z-index:10;
padding:5px 5px 0;
}
#zone-bar ul li:hover {
background:#C0C0C0;
}
#zone-bar ul li a {
color:#383838;
display:block;
float:left;
font-size:1.1em;
font-weight:700;
height:23px;
padding-right:3px;
position:relative;
right:-5px;
text-decoration:none;
top:-5px;
}
#zone-bar ul li a:hover,#zone-bar ul li a.zoneCur {
background:url(images/right-hover.png) center right no-repeat;
z-index:10;
}
#zone-bar ul li a span {
position:relative;
top:6px;
}
#zone-bar ul li ul {
background:#FFF;
border:1px solid #ccc;
display:none;
left:0;
position:absolute;
top:29px;
width:150px;
padding:10px 0 0;
}
#zone-bar ul li ul li {
float:none;
height:100%;
margin:0;
padding:0;
}
#zone-bar ul li ul li:hover {
background:none;
}
#zone-bar ul li ul li a {
display:block;
float:none;
margin-left:-5px;
width:140px;
padding:5px 0 0 10px;
}
#zone-bar ul li ul li a:hover {
background:#C0C0C0;
}
#zone-bar ul {
display:block;
}

This is my HTML code

  <div id="zone-bar"> 
   <ul><li> 
     <a href="#"><span>My Account &nbsp; <em><img src="images/arrow.png" alt="dropdown"></em></span></a> 
        <ul> 
            <li><a href="#">My Account</a></li> 
            <li><a href="#">My Channel</a></li> 
            <li><a href="#">My Videos</a></li> 
            <li><a href="#">Favorites</a></li> 
            <li><a href="#">Playlists</a></li> 
            <li><a href="#">Friend Requests (1)</a></li> 
            <li><a href="#">Logout</a></li> 
   </ul></li> 
   <li> 
     <a href="#"><span>Messages &nbsp; <em><img src="images/arrow.png" alt="dropdown"></em></span></a> 
        <ul> 
            <li><a href="#">Messages (1)</a></li> 
            <li><a href="#">Compose New Message</a></li> 
            <li><a href="#">Notifications (0)</a></li> 
   </ul></li>               
   <li> 
     <a href="#"><span>Videos &nbsp; <em><img src="images/arrow.png" alt="dropdown"></em></span></a> 
        <ul> 
                    <li><a href="#">Recent</a></li> 
                    <li><a href="#">Viewed</a></li> 
                    <li><a href="#">Featured</a></li> 
                    <li><a href="#">Top Rated</a></li> 
                    <li><a href="#">Commented</a></li> 
   </ul></li> 
   <li> 
     <a href="#"><span>Channels &nbsp; <em><img src="images/arrow.png" alt="dropdown"></em></span></a> 
        <ul> 
                    <li><a href="#">Recent</a></li> 
                    <li ><a href="#">Viewed</a></li> 
                    <li ><a href="#">Featured</a></li> 
                    <li ><a href="#">Top Rated</a></li> 
                    <li ><a href="#">Commented</a></li> 
   </ul></li>  
   <li> 
     <a href="#"><span>Groups &nbsp; <em><img src="images/arrow.png" alt="dropdown"></em></span></a> 
        <ul> 
            <li><a href="#">Create New Group</a></li> 
                        <li><a href="#">All Time</a></li>    
                        <li><a href="#">Today</a></li>    
                        <li><a href="#">Yesterday</a></li>    
                        <li><a href="#">This Week</a></li>    
                        <li><a href="#">Last Week</a></li>    
                        <li><a href="#">This Month</a></li>    
                        <li><a href="#">Last Month</a></li>    
                        <li><a href="#">This Year</a></li>    
                        <li><a href="#">Last Year</a></li>                  
   </ul></li>  
   <li> 
     <a href="#"><span>Upload &nbsp; <em><img src="images/arrow.png" alt="dropdown"></em></span></a> 
                <ul> 
                        <li><a href="#">Upload New Video</a></li> 
                        <li><a href="#">My Videos</a></li> 
   </ul></ul> 
  </div>

you can see a live demo at doctorwhohd.com

The problem im facing is this in normal all browsers except Firefox it looks like this when you hover over the items

In Firefox all versions i get this

Any help would be great! as this is a problem which i cannot seem to fix and im sure there is something im missing.

Answer 1

Your markup is really ugly for starters,

why have extra <span> tags in the top level <li> tags, why wrap your <img> tags with <em> and don’t use   for styling purposes.

Clean that up first.

Second, you have a lot of absolute and relative position styles that don’t appear to be necessary. Have you tried styling your nav without the use of relative and absolute positioning.

The only place I see relative positioning being useful here is for the little arrow images.

Try that out.