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Babel includes JSX processing.

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Code Indentation

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  <h2 class="all">20 CSS Tips That Greatly Improve User Experience</h2>
  <h3 class="all">bytefish</h3>
  <div>tel num: <span class="all">12345678</span></div>
  <p class="all">Lorem ipsum dolor sit amet consectetur adipisicing elit. Sequi velit eos asperiores labore voluptate atque doloremque ad assumenda nihil quia ullam ipsum in non magni quam facere fugiat, ipsam amet.</p>


  user-select: all;