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HTML

            
              <main>
  <h1>Поиграться с <code>display: contents</code></h1>
  <h2>Таблица <code>display: contents</code></h2>
    <table role="table">
      <caption id="Cap1">Книги, которые я, возможно, читал</caption>
      <tr>
        <th>Автор</th>
        <th>Заголовок</th>
        <th>Год</th>
        <th>ISBN-13</th>
        <th>ISBN-10</th>
      </tr>
      <tr>
        <td>Miguel De Cervantes</td>
        <td>The Ingenious Gentleman Don Quixote of La Mancha</td>
        <td>1605</td>
        <td>9783125798502</td>
        <td>3125798507</td>
      </tr>
      <tr>
        <td>Mary Shelley</td>
        <td>Frankenstein; or, The Modern Prometheus</td>
        <td>1818</td>
        <td>9781530278442</td>
        <td>1530278449</td>
      </tr>
      <tr>
        <td>Herman Melville</td>
        <td>Moby-Dick; or, The Whale</td>
        <td>1851</td>
        <td>9781530697908</td>
        <td>1530697905</td>
      </tr>
      <tr>
        <td>Emma Dorothy Eliza Nevitte Southworth</td>
        <td>The Hidden Hand</td>
        <td>1888</td>
        <td>9780813512969</td>
        <td>0813512964</td>
      </tr>
      <tr>
        <td>F. Scott Fitzgerald</td>
        <td>The Great Gatsby</td>
        <td>1925</td>
        <td>9780743273565</td>
        <td>0743273567</td>
      </tr>
      <tr>
        <td>George Orwell</td>
        <td>Nineteen Eighty-Four</td>
        <td>1948</td>
        <td>9780451524935</td>
        <td>0451524934</td>
      </tr>
    </table>
  <h2>Список с <code>display: contents</code></h2>
  <ul role="list">
    <li>The Ingenious Gentleman Don Quixote of La Mancha</li>
    <li>Frankenstein; or, The Modern Prometheus</li>
    <li>Moby-Dick; or, The Whale</li>
    <li>The Hidden Hand</li>
    <li>The Great Gatsby</li>
    <li>Nineteen Eighty-Four</li>
  </ul>
  <h2>Кнопка с <code>display: contents</code></h2>
  <p class="button">
    <button role="button" onclick="alert('There is that.');">Вы могли нажать меня?</button>
  </p>
  <p class="button">
    <button role="button" tabindex="0" onkeypress="alert('Sweet');">Попробуйте с клавиатуры!</button>
  </p>
  <h2 role="heading" aria-level="2">Заголовок с <code>display: contents</code></h2>
  <p>
     Вы только что прочитали это
  </p>
</main>
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CSS

            
              @import url("https://fonts.googleapis.com/css?family=Lato:400,400i,700");

body {
  background-color: #6d695c;
  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAMAAAAoLQ9TAAAACVBMVEUAAAAAAAAAAACDY+nAAAAAA3RSTlMmDQBzGIDBAAAAG0lEQVR42uXIIQEAAADCMHj/0NdkQMws0HEeAqvwAUGJthrXAAAAAElFTkSuQmCC);
  font-size: 100%;
  color: #333;
  font-family: Lato, Arial, sans-serif;
  padding: 0;
  margin: 0;
}

main {
  display: block;
  box-sizing: border-box;
  width: auto;
  padding: 1em 2vw;
  margin: 1em 2vw;
  color: #000;
  background-color: rgba(204, 204, 204, 0.7);
  border: 0.07em solid rgba(0, 0, 0, 0.5);
  border-radius: 0.5em;
}

table {
  margin: 1em 0;
  border-collapse: collapse;
}

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;
}

th {
  vertical-align: bottom;
  background-color: rgba(0, 0, 0, 0.5);
  color: #fff;
  font-weight: bold;
}

tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.25);
}

tr:nth-child(odd) {
  background-color: rgba(255, 255, 255, 0.5);
}

td:nth-of-type(2) {
  font-style: italic;
}

th:nth-of-type(3),
td:nth-of-type(3) {
  text-align: right;
}

div {
  overflow: auto;
}

li {
  margin-left: 2rem;
}

.button {
  border: 2px solid #666;
  width: 12em;
  text-align: center;
  padding: 1em .5em;
  background-color: #ddd;
}

table, ul, button, h2:last-of-type {
  display: contents;
}
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