CSS selector (if the element has no specific parent)

Question

If an element doesn't have a certain parent element, I want to change the style of that element without having to overwrite it to its original value.

See https://jsfiddle.net/xqb2z8tc/ The problem with the above code is that due to the heavy use of mixins, it generates a lot of css, so we want to rewrite it. I thought about using the ':has()' selector (browser support is fine for us), but I don't know how.

Similar to the code below, but it should work in all cases, see the jsfiddle above.

.dark-view:not(:has(.obox)) p {
  color: white;
}

Answer 1

Based on my interpretation of the question, it looks like you want to apply color: #fff to all

elements in .dark- view is not .obox Descendants of the element. If this is the case, consider using the selector .dark-view p:not(.obox *):

p {
  color: #111;
}

.dark-view p:not(.obox *) {
  color: #fff;
}

/* irrelevant demo stuff */
.dark-view {
  background: #333;
  padding: 10px;
}

.obox {
  background: #eee;
  border: 1px solid red;
  padding: 2px;
  margin-bottom: 5px;
}

<div class="dark-view">
  
  <div class="obox">
    <p>default</p>
  </div>
  
  <div>
    <div class="obox">
      <p>default</p>
    </div>
  </div>
  
  <div>
    <div>
      <div class="obox">
        <p>default</p>
      </div>
    </div>
  </div>
  
  <p>ondark</p>
  <div>
    <p>ondark</p>
  </div>
</div>

<p>default</p>

<div class="dark-view">
  <p>ondark</p>
  <div>
    <p>ondark</p>
  </div>
  <div>
    <div>
      <p>ondark</p>
    </div>
  </div>
</div>