z-index on two fixed elements is not working

Question

I have two fixed containers, #meta and #meta-container , where #meta shall always be on the foreground, as it is a global control-element.

My code looks like this

 #meta-container { position: fixed; z-index: 1; left: 0; right:0; bottom:0; top: 0; background-color: red; color: rgba(0, 0, 0, 0.87); } #meta { position: fixed; z-index: 2; top: 40%; width: 60px; height: 25px; display: flex; background-color: black; } 

 <div> <span id="meta"> <span class="bar"></span> <span class="bar"></span> <span class="bar"></span> <span class="bar"></span> <span class="bar"></span> </span> #meta </div> <div id="meta-container" class="slidein"> #meta-container </div> 

But span#meta is not displayed on top of div#meta-container . I did not re-assign z-index somewhere. I also changed the z-index values for testing but it did not help. What am I doing wrong?

So long - happy coding.

(1) Edit: Corrected spelling in code snippet. Snippet now working (unfortunately not my code).

Answer 1

All you need to do is adding top and left styles to overlay them:

 #meta-container { position: fixed; top: 0; left: 0; z-index: 1; } #meta { position: fixed; top: 0; left: 0; z-index: 2; } 

 <div> <span id="meta"> <span class="bar"></span> <span class="bar"></span> <span class="bar"></span> <span class="bar"></span> <span class="bar"></span> </span> bbbbbbbbbbbbbbbbbbbbbbbbbbbbb </div> <div id="meta-container" class="slidein"> aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa </div> 

Answer 2

#meta-container {
  position: relative;
  width:100%;
  height:100%;
  . . .
}

#meta {
  position: fixed;
  . . .
}

--

<div id="meta">
    <span class="bar"></span>
    <span class="bar"></span>
    <span class="bar"></span>
    <span class="bar"></span>
    <span class="bar"></span>

    <div id="meta-container" class="slidein">
      ...
    </div>
</div>

Answer 3

 #meta{ border: 1px solid; width: 25%; position: absolute; z-index: 1; } #meta-container{ border: 1px solid; width: 25%; color: red; position: relative; } 

 <div id="meta"> <span> meta box </span> </div> <div id="meta-container" class="slidein"> meta container box </div>