CodePen

HTML

            
              <div>
  hi
  <div>
    hi
    <div>
      hi
    </div>
  </div>
</div>
            
          
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CSS

            
              div {
  background: rgba(orange, 0.5);
  min-height: 20px;
  width: 30em;
  font-size: 1.2em;
  margin: 0.5em;
  padding: 0.5em;
}
            
          
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JS

            
              
            
          
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