title: Div overlay other divs in a flex container
body: <p>There is a container in which there is a flex container.</p>
  
  <p>HTML</p>
  
  <pre><code>&lt;div class="container"&gt;
    &lt;div class="content"&gt;
      &lt;div class="over"&gt;Over&lt;/div&gt;
      &lt;div&gt;Test&lt;/div&gt;
      &lt;div&gt;Test&lt;/div&gt;
      &lt;div&gt;Test&lt;/div&gt;
    &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>CSS</p>
  
  <pre><code>.container {
    background-color: yellow;
    width: 500px;
  }
  .content {
    display: flex;
  }
  .over {
    background-color: rgba(255, 0, 0, 0.8);
  }
  </code></pre>
  
  <p>Now it looks like this:</p>
  
  <p><a href="https://i.stack.imgur.com/MhqHT.png" rel="noreferrer"><img src="https://i.stack.imgur.com/MhqHT.png" alt="enter image description here"></a></p>
  
  <p>Can the over div somehow be placed over all other divs, and the width of the content should be?</p>
  
  <p><a href="https://i.stack.imgur.com/xQguE.png" rel="noreferrer"><img src="https://i.stack.imgur.com/xQguE.png" alt="enter image description here"></a></p>