<div class="container">
  コンテナ
  <div class="parent1">
    親1
    <div class="child">
      子1
      <div class="grand-child">
        孫1
      </div>
    </div>
  </div>
  <div class="parent2">
    親2
    <div class="child">
      子2
      <div class="grand-child">
        孫2
      </div>
    </div>
  </div>
</div>
* {
  color: blue;
}

.parent1 * {
  font-weight: bold;
}

.child * {
  background-color: lightblue;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.