the mystical powers of z-index

I am working on a typical menu structure (ul>li>a) and my goal is to add background effects like shadow and gradient into an <li> element (ul>li>.shadow-bg-white). The challenge I'm facing is that when hovering over the items from right to left, the items on the left side do not react to the :hover pseudo-class.

You can view the issue in action here: http://jsfiddle.net/voilalal/P57yE/embedded/result/ or http://jsfiddle.net/voilalal/P57yE/6/

All blocks have the CSS position property assigned, so theoretically z-index should work correctly. However, it seems like the .shadow-bg-white z-index is placed higher than the a item.

If you have any recommendations for a solution to this problem, I would greatly appreciate it!

css

Answer №1

Benjam seemed to be heading in the right direction with the solution. Without knowing your exact goals, it's hard to guarantee that this solution will work for you, but as of now, there doesn't seem to be any alternative. Make sure that the li you are hovering over is positioned lower than the others so that the div within it does not overlap them. This code snippet should do the trick:

#header-menu ul li:hover {
    z-index: 498; /* one level below the set z-index for li */
}

You can check out an example here: http://jsfiddle.net/P57yE/8/.

The reason why moving left worked is because when elements have the same z-index, the one that appears later in the source order takes precedence by default. So, as you move right, you're going down in the html source order and triggering the hover on a new element with the same z-index. However, when moving left, you're going up in the source order, allowing the previously hovered element to maintain precedence and keep the hover effect.

Answer №2

The lack of reaction is likely due to the div overlaying them and taking away their hover effect.

If you don't need the div to cover all of the items, consider moving it below with a z-index to allow the LIs to respond correctly. Without knowing your exact intentions, it's hard to say if this solution will fit your needs.

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