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    <p>To answer your last question first, as long as you don't need to support any browsers that completely lack support for generated content (<a href="http://caniuse.com/#feat=css-gencontent" rel="nofollow">http://caniuse.com/#feat=css-gencontent</a>) then you shouldn't need to avoid it. However, since you note that this is a known bug, you should be <em>careful</em> about it.</p> <p>In this specific example, I can think of three different ways to work around the bug. Whether these are useful to you depends on your actual use case.</p> <ol> <li><p>Use <code>:after</code> instead of <code>:before</code> and remove positioning from the child <code>div</code>: <a href="http://jsfiddle.net/AjCPM/24/" rel="nofollow">http://jsfiddle.net/AjCPM/24/</a></p> <pre><code>#target { position: relative; width: 200px; height: 200px; z-index: 1; } #target&gt;div{ background: red; width: 200px; height: 200px; } #target:after { content: "after"; position: absolute; top: 0; left: 10%; width: 100%; height: 100%; background: cyan; z-index: 10; } </code></pre></li> <li><p>Add the after to the child <code>div</code> instead of the parent: <a href="http://jsfiddle.net/AjCPM/26/" rel="nofollow">http://jsfiddle.net/AjCPM/26/</a></p> <pre><code>#target { position: relative; width: 200px; height: 200px; z-index: 1; } #target&gt;div{ position: relative; background: red; width: 200px; height: 200px; z-index: 0; } #target&gt;div:before{ content: "after"; position: absolute; top: 0; left: 10%; width: 100%; height: 100%; background: cyan; z-index: 10; } </code></pre></li> <li><p>Use a wrapping element (usually because you already have one) to apply the base styling to: <a href="http://jsfiddle.net/AjCPM/29/" rel="nofollow">http://jsfiddle.net/AjCPM/29/</a></p> <pre><code> &lt;div id="target"&gt; &lt;div id="wrap"&gt; &lt;div&gt;div&lt;/div&gt; &lt;/div&gt; &lt;/div&gt; #target { position: relative; width: 200px; height: 200px; z-index: 1; } #wrap&gt;div{ position: relative; background: red; width: 200px; height: 200px; z-index: 0; } #wrap&gt;div:before{ content: "after"; position: absolute; top: 0; left: 10%; width: 100%; height: 100%; background: cyan; z-index: 10; } </code></pre></li> </ol> <p>Basically, when faced with a difference in interpretation between browsers like this, your best bet is to try to rearrange your approach to find something that works cross-browser.</p>
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    1. POz-index IE8 bug on generated content with :after
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    1. CO+1 for your solution #1. Unless there is some reason for the OP to have a `z-index` on that child `div` then that would be the "cleanest" solution for using the pseudo-element.
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    2. COI've tried all three of these and none quite work correctly for me. In every case, the text inside the :before/:after gets the correct z-index (it appears above the parent element) the background-color does not (it appears behind the text of the parent element). Frustrating.
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      1. USOlly Hodgson
 

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