Block Desendants while selecting child elements - html

Question

I am trying to make a drop down list by using nested Un ordered lists.
My case is i have an unordered list, which is having another unordered list inside of its li element. I had written hover for the first level li elements by using the child selector. My problem is while hovering the first level li element, the css for its hovering process is also get applied to its child li element. My question is why does the child selector selecting its descendants in my case..? and what should i do to avoid this in future.?
DEMO - Fiddle

Answer 1

Here is the solution below:
My question is why does the child selector selecting its descendants in my case..?
Because you have defined one part of the CSS by adding #ULHeaderMenuWrapperMenuCollection > li:hover
what should i do to avoid this in future.?
You have to protect the inheritance by adding #ULHeaderMenuWrapperMenuCollection > li:hover div ul li to your CSS. Here is the Working Solution.
#ULHeaderMenuWrapperMenuCollection > li:hover div ul li
{
color:black;
}
#ULHeaderMenuWrapperMenuCollection > li:hover div ul li:hover
{
color:orange;
}
Hope this helps.

Answer 2

Updated to fit to your original code
When you mouse is hover your sublist, it's still hover the main one.
I suggest you to put your <li> text in a <span> or a <a>, which makes your css simplest :
HTML
<ul id="ULHeaderMenuWrapperMenuCollection">
<li>
<span>Products</span>
<div id="DivProductsMenu">
<div id="DivProductsMenuUpper">
<ul>
<li><span>CIMS</span></li>
<li><span>VPRO</span></li>
<li><span>BIRIS</span></li>
</ul>
</div>
<div id="DivProductsMenuLower">
<ul>
<li><span>PATRON</span></li>
<li><span>DEAL</span></li>
<li><span>MEDIX</span></li>
</ul>
</div>
</div>
</li>
<li>
<span>Contact Us</span>
</li>
</ul>
CSS
#ULHeaderMenuWrapperMenuCollection li > span:hover {
color:orange;
}
JsFiddle