Nav menu sitting behind iFrame
css, html, iframe, internet-explorer-9
Solution
Have you tried the empty iframe technique ? It was not working before because you need to add an empty iframe inside each submenu ul tag.
HTML
<div id="outer">
<div id="inner">
<div id="navMenu">
<ul id="menu">
<li>
<a href="#">Menu 1</a>
</li>
<li><a href="#">Menu 2</a>
<ul class="sub-menu">
<iframe class="cover" src="about:blank"></iframe>
<li>
<a href="#">Sub Menu 1</a>
</li>
<li>
<a href="#">Sub Menu 2</a>
</li>
<li>
<a href="#">Sub Menu 3</a>
</li>
<li>
<a href="#">Sub Menu 4</a>
</li>
</ul>
</li>
<li><a href="#">Menu 3</a>
</li>
<li><a href="#">Menu 4</a>
<ul class="sub-menu">
<iframe class="cover" src="about:blank"></iframe>
<li>
<a href="#">Sub Menu 1</a>
</li>
<li>
<a href="#">Sub Menu 2</a>
</li>
<li>
<a href="#">Sub Menu 3</a>
</li>
<li>
<a href="#">Sub Menu 4</a>
</li>
</ul>
</li>
<li>
<a href="#">Menu 5</a>
</li>
</ul>
</div>
CSS
#outer {
position: relative;
left:0;
top: 0;
width: 100%;
z-index: 3;
}
#inner{
background: red;
}
.cover {
position: absolute;
border: none;
top: 0;
left: 0;
width: 100%;
z-index: -2;
height:100%;
}
#pdf {
position: relative;
top:0;
z-index: 1;
}
ul#menu, ul#menu ul.sub-menu {
padding:0;
margin: 0;
z-index:3;
}
ul#menu li, ul#menu ul.sub-menu li {
list-style-type: none;
display: inline-block;
}
/*Link Appearance*/
ul#menu li a, ul#menu li ul.sub-menu li a {
text-decoration: none;
color: #fff;
background: #666;
padding: 5px;
display:inline-block;
}
/*Make the parent of sub-menu relative*/
ul#menu li {
position: relative;
}
/*sub menu*/
ul#menu li ul.sub-menu {
display:none;
position: absolute;
top: 30px;
left: 0;
width: 100px;
z-index:3;
}
ul#menu li:hover ul.sub-menu {
display:block;
position:absolute;
z-index:3;
}
EXAMPLE
http://jsfiddle.net/gDuCE/701/
Problem
Specifically on IE9 only, my navigation menu is sitting behind my iframe when viewing a PDF through that iFrame. I have set up a jsfiddle to demonstrate: http://jsfiddle.net/q6fmv/ Alternatively please see the bottom of this question for the code. When viewed on IE9 if you hover over the navigation elements, the ones that have a sub nav you can see are hidden behind the iFrame. I have tried setting the z-index of the nav menu to be higher than that of the iFrame but it didnt work. How can I resolve this so the sub menu of the navigatino menu appears on top of the iframe? HTML ``` <div id="navMenu"> <ul id="menu"> <li> <a href="#">Menu 1</a> </li> <li><a href="#">Menu 2</a> <ul class="sub-menu"> <li> <a href="#">Sub Menu 1</a> </li> <li> <a href="#">Sub Menu 2</a> </li> <li> <a href="#">Sub Menu 3</a> </li> <li> <a href="#">Sub Menu 4</a> </li> </ul> </li> <li><a href="#">Menu 3</a> </li> <li><a href="#">Menu 4</a> <ul class="sub-menu"> <li> <a href="#">Sub Menu 1</a> </li> <li> <a href="#">Sub Menu 2</a> </li> <li> <a href="#">Sub Menu 3</a> </li> <li> <a href="#">Sub Menu 4</a> </li> </ul> </li> <li> <a href="#">Menu 5</a> </li> </ul> </div> <br /> <div id="iframe"> <iframe name="myiFrame" width="100%" height="100%" title="My iFrame" id="myIframe" src="http://www.education.gov.yk.ca/pdf/pdf-test.pdf" frameBorder="0"/> </div> ``` CSS ``` /*Initialize*/ ul#menu, ul#menu ul.sub-menu { padding:0; margin: 0; } ul#menu li, ul#menu ul.sub-menu li { list-style-type: none; display: inline-block; } /*Link Appearance*/ ul#menu li a, ul#menu li ul.sub-menu li a { text-decoration: none; color: #fff; background: #666; padding: 5px; display:inline-block; } /*Make the parent of sub-menu relative*/ ul#menu li { position: relative; } /*sub menu*/ ul#menu li ul.sub-menu { display:none; position: absolute; top: 30px; left: 0; width: 100px; } ul#menu li:hover ul.sub-menu { display:block; } ``` Have also tried using PDFObject.js http://jsfiddle.net/q6fmv/10/. It didnt work