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HTML 

              
                <main>
  <h1>Accessible Cart Tables?</h1>
  
  <p>
    Used in the post <cite><a href="https://adrianroselli.com/2022/01/accessible-cart-tables.html" target="_top">Accessible Cart Tables?</a></cite>.
  </p>

    <h2 id="T1">1. Just Spanning, No <code>headers</code> Attribute</h2>

    <table>
      <caption>Basic Shopping Cart</caption>
      <tr>
        <th>SKU</th>
        <th>Description</th>
        <th>Unit Price</th>
        <th>Quantity</th>
        <th>Total</th>
      </tr>
      <tr>
        <td>123456</td>
        <th>Pudding</th>
        <td>$1.00</td>
        <td>240</td>
        <td>$ 240.00</td>
      </tr>
      <tr>
        <td>987654</td>
        <th>A new set of steak knives</th>
        <td>$90.00</td>
        <td>½</td>
        <td>$ 45.00</td>
      </tr>
      <tr>
        <td>456789</td>
        <th>Sand</th>
        <td>$5.00</td>
        <td>200</td>
        <td>$ 1,000.00</td>
      </tr>
      <tr>
        <th colspan="4" scope="row">Sub-Total</th>
        <td>$ 1,525.00</td>
      </tr>
      <tr>
        <th colspan="4" scope="row">Shipping</th>
        <td>FREE</td>
      </tr>
      <tr>
        <th colspan="4" scope="row">Grand Total</th>
        <td>$ 1,525.00</td>
      </tr>
    </table>

    <h2 id="T2">2. Description Column with a <code>headers</code> Attribute</h2>

    <table>
      <caption>Description Column</caption>
      <tr>
        <th>SKU</th>
        <th id="dh1">Description</th>
        <th>Unit Price</th>
        <th>Quantity</th>
        <th>Total</th>
      </tr>
      <tr>
        <td>123456</td>
        <th>Pudding</th>
        <td>$1.00</td>
        <td>240</td>
        <td>$ 240.00</td>
      </tr>
      <tr>
        <td>987654</td>
        <th>A new set of steak knives</th>
        <td>$90.00</td>
        <td>½</td>
        <td>$ 45.00</td>
      </tr>
      <tr>
        <td>456789</td>
        <th>Sand</th>
        <td>$5.00</td>
        <td>200</td>
        <td>$ 1,000.00</td>
      </tr>
      <tr>
        <th colspan="4" scope="row" headers="dh1">Sub-Total</th>
        <td>$ 1,525.00</td>
      </tr>
      <tr>
        <th colspan="4" scope="row" headers="dh1">Shipping</th>
        <td>FREE</td>
      </tr>
      <tr>
        <th colspan="4" scope="row" headers="dh1">Grand Total</th>
        <td>$ 1,525.00</td>
      </tr>
    </table>

    <h2 id="T3">3. Blank Column with a <code>headers</code> Attribute</h2>

    <table class="blank">
      <caption>Blank Column</caption>
      <tr>
        <th id="bh1"><span class="visually-hidden">&nbsp;</span></th>
        <th>SKU</th>
        <th>Description</th>
        <th>Unit Price</th>
        <th>Quantity</th>
        <th>Total</th>
      </tr>
      <tr>
        <td></td>
        <td>123456</td>
        <th>Pudding</th>
        <td>$1.00</td>
        <td>240</td>
        <td>$ 240.00</td>
      </tr>
      <tr>
        <td></td>
        <td>987654</td>
        <th>A new set of steak knives</th>
        <td>$90.00</td>
        <td>½</td>
        <td>$ 45.00</td>
      </tr>
      <tr>
        <td></td>
        <td>456789</td>
        <th>Sand</th>
        <td>$5.00</td>
        <td>200</td>
        <td>$ 1,000.00</td>
      </tr>
      <tr>
        <th colspan="5" scope="row" headers="bh1">Sub-Total</th>
        <td>$ 1,525.00</td>
      </tr>
      <tr>
        <th colspan="5" scope="row" headers="bh1">Shipping</th>
        <td>FREE</td>
      </tr>
      <tr>
        <th colspan="5" scope="row" headers="bh1">Grand Total</th>
        <td>$ 1,525.00</td>
      </tr>
    </table>

    <h2 id="T4">4. Using a <code>headers</code> Attribute to Point to a Header It Does Not Span</h2>

    <table>
      <caption>Header It Does Not Span</caption>
      <tr>
        <th>SKU</th>
        <th>Description</th>
        <th>Unit Price</th>
        <th>Quantity</th>
        <th id="sh1">Total</th>
      </tr>
      <tr>
        <td>123456</td>
        <th>Pudding</th>
        <td>$1.00</td>
        <td>240</td>
        <td>$ 240.00</td>
      </tr>
      <tr>
        <td>987654</td>
        <th>A new set of steak knives</th>
        <td>$90.00</td>
        <td>½</td>
        <td>$ 45.00</td>
      </tr>
      <tr>
        <td>456789</td>
        <th>Sand</th>
        <td>$5.00</td>
        <td>200</td>
        <td>$ 1,000.00</td>
      </tr>
      <tr>
        <th colspan="4" scope="row" headers="sh1">Sub-Total</th>
        <td>$ 1,525.00</td>
      </tr>
      <tr>
        <th colspan="4" scope="row" headers="sh1">Shipping</th>
        <td>FREE</td>
      </tr>
      <tr>
        <th colspan="4" scope="row" headers="sh1">Grand Total</th>
        <td>$ 1,525.00</td>
      </tr>
    </table>

  <h2 id="T5">5. Using <code>&lt;tfoot&gt;</code> and <code>aria-labelledby</code> for Last 3 Rows</h2>

    <table class="tfoot">
      <caption>A <code>&lt;tfoot&gt;</code> Effort</caption>
      <thead>
        <tr>
          <th>SKU</th>
          <th>Description</th>
          <th>Unit Price</th>
          <th>Quantity</th>
          <th id="tf1">Total</th>
        </tr>
      </thead>
      <tbody>
        <tr>
          <td>123456</td>
          <th>Pudding</th>
          <td>$1.00</td>
          <td>240</td>
          <td>$ 240.00</td>
        </tr>
        <tr>
          <td>987654</td>
          <th>A new set of steak knives</th>
          <td>$90.00</td>
          <td>½</td>
          <td>$ 45.00</td>
        </tr>
        <tr>
          <td>456789</td>
          <th>Sand</th>
          <td>$5.00</td>
          <td>200</td>
          <td>$ 1,000.00</td>
        </tr>
      </tbody>
      <tfoot >
        <tr>
          <th colspan="4" scope="row" aria-labelledby="tf1">Sub-Total</th>
          <td>$ 1,525.00</td>
        </tr>
        <tr>
          <th colspan="4" scope="row" aria-labelledby="tf1">Shipping</th>
          <td>FREE</td>
        </tr>
        <tr>
          <th colspan="4" scope="row" aria-labelledby="tf1">Grand Total</th>
          <td>$ 1,525.00</td>
        </tr>
      </tfoot>
    </table>
  
    <h2 id="T6">6. Restructure the Table</h2>

    <table>
      <caption>Restructured Shopping Cart</caption>
      <tr>
        <th>SKU</th>
        <th>Description</th>
        <th>Unit Price</th>
        <th>Quantity</th>
        <th id="rh1">Sub-Total</th>
        <th>Total</th>
      </tr>
      <tr>
        <td>123456</td>
        <th>Pudding</th>
        <td>$1.00</td>
        <td>240</td>
        <td>$ 240.00</td>
        <td>$ 240.00</td>
      </tr>
      <tr>
        <td>987654</td>
        <th>A new set of steak knives</th>
        <td>$90.00</td>
        <td>½</td>
        <td>$ 45.00</td>
        <td>$ 45.00</td>
      </tr>
      <tr>
        <td>456789</td>
        <th>Sand</th>
        <td>$5.00</td>
        <td>200</td>
        <td>$ 1,000.00</td>
        <td>$ 1,000.00</td>
      </tr>
      <tr>
        <th colspan="5" scope="row" headers="rh1">Sub-Total</th>
        <td>$ 1,525.00</td>
      </tr>
      <tr>
        <th colspan="5" scope="row" headers="rh1">Shipping</th>
        <td>FREE</td>
      </tr>
      <tr>
        <th colspan="5" scope="row" headers="rh1">Grand Total</th>
        <td>$ 1,525.00</td>
      </tr>
    </table>
  
    <h2 id="T7">7. Dump All Spans</h2>

    <table class="despan">
      <caption>No Spans</caption>
      <tr>
        <th>SKU</th>
        <th>Description</th>
        <th>Unit Price</th>
        <th>Quantity</th>
        <th>Total</th>
      </tr>
      <tr>
        <td>123456</td>
        <th>Pudding</th>
        <td>$1.00</td>
        <td>240</td>
        <td>$ 240.00</td>
      </tr>
      <tr>
        <td>987654</td>
        <th>A new set of steak knives</th>
        <td>$90.00</td>
        <td>½</td>
        <td>$ 45.00</td>
      </tr>
      <tr>
        <td>456789</td>
        <th>Sand</th>
        <td>$5.00</td>
        <td>200</td>
        <td>$ 1,000.00</td>
      </tr>
      <tr>
        <td></td>
        <th>Sub-Total</th>
        <td>$1,525.00</td>
        <td>1</td>
        <td>$ 1,525.00</td>
      </tr>
      <tr>
        <td></td>
        <th>Shipping</th>
        <td>FREE</td>
        <td>1</td>
        <td>$ 1,525.00</td>
      </tr>
      <tr>
        <td></td>
        <th>Grand Total</th>
        <td></td>
        <td>1</td>
        <td>$ 1,525.00</td>
      </tr>
    </table>

</main>
!

CSS 

              
                :root {
  --page-bg: #fff;
  --text-color: #000;
  --link-color: #00f;
  --vlink-color: #909;
  --flink-color: #00f;
}

/* @media screen and (prefers-color-scheme: dark) {
  :root {
    --page-bg: #000;
    --text-color: #fff;
    --link-color: #99f;
    --vlink-color: #c6c;
    --flink-color: #99f;
  }
} */

body {
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  line-height: 1.4;
  color: var(--text-color);
  background-color: var(--page-bg);
  /*   line-height: 1.5; */
  /*   letter-spacing: 0.12em; */
  /*   word-spacing: 0.16em; */
  margin: 0 2vw;
}

a, a:link {
  color: var(--link-color);
}

a:visited {
  color: var(--vlink-color);
}

a:focus, a:hover {
  text-decoration: none;
  color: var(--flink-color);
}

h1, h2 {
  line-height: 1;
}

/* Standard Tables */


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;
  border: .01em solid #666;
  font-variant-numeric: tabular-nums;
}

td:empty {
  border: none;
}

th, thead tr:first-child th {
  vertical-align: bottom;
  background-color: #666;
  color: #fff;
}

thead th:nth-child(-n+2) {
  text-align: left;
}

tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.05);
}

tr:nth-child(odd) {
  background-color: rgba(255, 255, 255, 0.1);
}

tr td + th, tr:nth-last-child(-n + 3) th {
  background-color: transparent;
  color: initial;
  color: var(--text-color);
}

tr *:nth-last-child(1),
tr *:nth-last-child(2),
tr *:nth-last-child(3),
tr:nth-last-child(-n + 3) * {
  text-align: right;
  white-space: nowrap;
}

tr:nth-last-child(-n + 3) th, .despan tr:nth-last-child(-n + 3) td:empty {
  background-color: var(--page-bg);
  border: none;
}

.tfoot tbody tr:nth-last-child(-n + 3) th {
  background-color: transparent;
  text-align: unset;
  border: 0.01em solid #666;
}

.visually-hidden:not(:focus):not(:active) {
  position: absolute;
  overflow: hidden;
  clip: rect(0 0 0 0); 
  clip-path: inset(50%);
  width: 1px;
  height: 1px;
  white-space: nowrap; 
}

.blank tr:not(:nth-last-child(1)):not(:nth-last-child(2)):not(:nth-last-child(3)) *:first-child {
  padding: 0;
}
!

JS
!
999px

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