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HTML

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CSS

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <h1>Physical vs. logical properties</h1>

<h2>Physical properties</h2>

<p>In right-to-left languages “One” should be positioned at the very right, but it's not because with physical properties every list item has its margin always on the right, no matter the reading direction.</p>

<h3>left to right</h3>
<ul class="physical">
  <li>One</li>
  <li>Two</li>
  <li>Three</li>
</ul>

<h3>right to left</h3>
<ul class="physical" dir="rtl">
  <li>One</li>
  <li>Two</li>
  <li>Three</li>
</ul>


<h2>Logical properties</h2>

<p>Using logical properties, “One” is at the very right in right-to-left languages because logical properties don't work with the concept of <em>top</em> and <em>bottom</em> or <em>left</em> and <em>right</em>, but <em>start</em> and <em>end</em>, which may switch depending on the writing mode.

<h3>left to right</h3>
<ul class="logical">
  <li>One</li>
  <li>Two</li>
  <li>Three</li>
</ul>

<h3>right to left</h3>
<ul class="logical" dir="rtl">
  <li>One</li>
  <li>Two</li>
  <li>Three</li>
</ul>
!

CSS 

              
                ul {
  display: flex;
  list-style: none;
  padding: 0.5rem 0;
  margin: 0 0 2rem 0;
  max-width: 30rem;
  border: 2px solid;
}

.physical li {
  margin-right: 2rem;
}

.logical li {
  margin-inline-end: 2rem;
}








body {
  font-family: sans-serif;
  font-size: 1.4rem;
  max-width: 75ch;
  line-height: 1.5;
}
!

JS
!
999px

Console