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CSS

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HTML 

              
                <h1>2. Does NOT use <code>scope</code>, <code>&lt;colgroup&gt;</code>, <code>&lt;thead&gt;</code>, <code>&lt;tbody&gt;</code></h1>

<p>
  Validate using <a href="https://validator.w3.org/nu/#textarea" target="_top">Nu HTML Checker</a> text box to paste in your code, or <a href="https://validator.w3.org/nu/?showsource=yes&doc=https%3A%2F%2Fcdpn.io%2Fpen%2Fdebug%2FabaomKP" target="_top">validate this entire page</a> (ignore the three CodePen errors).
</p>

<table>
  <caption>Books 2</caption>
  <tr>
    <th rowspan="2">Region</th>
    <th rowspan="2">Author</th>
    <th rowspan="2">Title</th>
    <th rowspan="2">Year</th>
    <th colspan="2">ISBN</th>
    <th colspan="3">Formats Available</th>
  </tr>
  <tr>
    <th>13</th>
    <th>10</th>
    <th>Pulp</th>
    <th>Audio</th>
    <th>Digital</th>
  </tr>
  <tr>
    <th>Asia</th>
    <th>Murasaki Shikibu<br>(<span lang="ja">紫 式部</span>, Lady Murasaki)</th>
    <td>The Tale of Genji<br>(<span lang="ja">源氏物語</span>, Genji monogatari)</td>
    <td>1021</td>
    <td>9780142437148</td>
    <td>014243714X</td>
    <td>✔</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <th rowspan="7">Europe</th>
    <th rowspan="3">Miguel De Cervantes</th>
    <td>The Ingenious Gentleman Don Quixote of La Mancha</td>
    <td>1605</td>
    <td>9783125798502</td>
    <td>3125798507</td>
    <td>✔</td>
    <td>✔</td>
    <td>✔</td>
  </tr>
  <tr>
    <td lang="es">Novelas ejemplares</td>
    <td>1590–1612</td>
    <td>unknown</td>
    <td>unknown</td>
    <td></td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td lang="es">La Galatea</td>
    <td>1605</td>
    <td>9788437613154</td>
    <td>unknown</td>
    <td>✔</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <th>Sir Isaac Newton</th>
    <td>The Method of Fluxions and Infinite Series: With Its Application to the Geometry of Curve-lines</td>
    <td>1763</td>
    <td>9781330454862</td>
    <td>1330454863</td>
    <td>✔</td>
    <td>✔</td>
    <td>✔</td>
  </tr>
  <tr>
    <th rowspan="3">Mary Shelley</th>
    <td>Frankenstein; or, The Modern Prometheus</td>
    <td>1818</td>
    <td>9781530278442</td>
    <td>1530278449</td>
    <td>✔</td>
    <td>✔</td>
    <td>✔</td>
  </tr>
  <tr>
    <td>The Last Man</td>
    <td>1826</td>
    <td>unknown</td>
    <td>0192838652</td>
    <td>✔</td>
    <td></td>
    <td></td>
  </tr>
  <tr>
    <td>The Beautiful Widow</td>
    <td>1835</td>
    <td>unknown</td>
    <td>1551110776</td>
    <td>✔</td>
    <td>✔</td>
    <td></td>
  </tr>
  <tr>
    <th rowspan="4">North America</th>
    <th>Herman Melville</th>
    <td>Moby-Dick; or, The Whale</td>
    <td>1851</td>
    <td>9781530697908</td>
    <td>1530697905</td>
    <td>✔</td>
    <td>✔</td>
    <td>✔</td>
  </tr>
  <tr>
    <th rowspan="2">F. Scott Fitzgerald</th>
    <td>This Side of Paradise</td>
    <td>1920</td>
    <td>9781657584419</td>
    <td>1657584410</td>
    <td>✔</td>
    <td>✔</td>
    <td>✔</td>
  </tr>
  <tr>
    <td>The Great Gatsby</td>
    <td>1925</td>
    <td>9780743273565</td>
    <td>0743273567</td>
    <td>✔</td>
    <td></td>
    <td>✔</td>
  </tr>
  <tr>
    <th rowspan="3">Nnedi Okorafor</th>
    <td>Who Fears Death</td>
    <td>2010</td>
    <td>9780756406691</td>
    <td>0756406692</td>
    <td>✔</td>
    <td>✔</td>
    <td>✔</td>
  </tr>
  <tr>
    <th rowspan="2">Africa</th>
    <td>The Book of Phoenix</td>
    <td>2015</td>
    <td>9780756410780</td>
    <td>0756410789</td>
    <td>✔</td>
    <td>✔</td>
    <td>✔</td>
  </tr>
  <tr>
    <td>Remote Control</td>
    <td>2021</td>
    <td>9781250772800</td>
    <td>125077280X</td>
    <td>✔</td>
    <td>✔</td>
    <td>✔</td>
  </tr>
</table>
!

CSS 

              
                body {
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  line-height: 1.4;
  /*   line-height: 1.5; */
  /*   letter-spacing: 0.12em; */
  /*   word-spacing: 0.16em; */
}

/* Standard Tables */

table {
  margin: 1em 0;
  border-collapse: collapse;
  border: 0.1em solid #d6d6d6;
}

caption {
  text-align: left;
  font-style: italic;
  padding: 0.25em 0.5em 0.5em 0.5em;
}

th,
td {
  padding: 0.25em 0.5em 0.25em 1em;
  vertical-align: text-top;
  text-align: left;
  text-indent: -0.5em;
  scroll-snap-align: start;
}

tr th {
  vertical-align: bottom;
  background-color: #666;
  color: #fff;
}

tr {
  border-bottom: 0.1em solid #d6d6d6;
}

td:nth-of-type(1) {
  font-style: italic;
/*   background: #fcf; */
}

td:nth-of-type(3),
td:nth-of-type(4) {
  text-align: right;
/*   background: #ffc; */
}

td:nth-of-type(5),
td:nth-of-type(6),
td:nth-of-type(7) {
  text-align: center;
/*   background: #cff; */
}
!

JS
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