[css] I do not want to inherit the child opacity from the parent in CSS

Assign opacity 1.0 to the child recursively with:

div > div { opacity: 1.0 }

Example:

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div.x { opacity: 0.5 }_x000D_
div.x > div.x { opacity: 1.0 }
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<div style="background-color: #f00; padding:20px;">_x000D_
  <div style="background-color: #0f0; padding:20px;">_x000D_
    <div style="background-color: #00f; padding:20px;">_x000D_
      <div style="background-color: #000; padding:20px; color:#fff">_x000D_
         Example Text - No opacity definition_x000D_
      </div>_x000D_
    </div>  _x000D_
  </div>_x000D_
</div>_x000D_
<div style="opacity:0.5; background-color: #f00; padding:20px;">_x000D_
  <div style="opacity:0.5; background-color: #0f0; padding:20px;">_x000D_
    <div style="opacity:0.5; background-color: #00f; padding:20px;">_x000D_
      <div style="opacity:0.5; background-color: #000; padding:20px; color:#fff">_x000D_
        Example Text - 50% opacity inherited_x000D_
      </div>_x000D_
    </div>  _x000D_
  </div>_x000D_
</div>_x000D_
<div class="x" style="background-color: #f00; padding:20px;">_x000D_
  <div class="x" style="background-color: #0f0; padding:20px;">_x000D_
    <div class="x" style="background-color: #00f; padding:20px;">_x000D_
      <div class="x" style="background-color: #000; padding:20px; color:#fff">_x000D_
         Example Text - 50% opacity not inherited_x000D_
      </div>_x000D_
    </div>  _x000D_
  </div>_x000D_
</div>_x000D_
<div style="opacity: 0.5; background-color: #000; padding:20px; color:#fff">_x000D_
  Example Text - 50% opacity_x000D_
</div>
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