Re: [csswg-drafts] [css3-table] Are borders considered or not scrollable overflow? (#13586)

Like, clearly it's a WebKit bug that sizes the table wrong when adding the thead. The table shouldn't overflow at all, so whether collapsed borders are scrollable overflow or not is irrelevant for this test.

```html
<!DOCTYPE html>
<div id="container" style="overflow-x:auto; max-width:500px; border: solid magenta">
  <table style="border-collapse: collapse">
    <thead>
      <tr><td>header</td></tr>
    </thead>
    <tbody style="border: 80px solid blue">
      <tr><td>body body body body body body body body body body body</td></tr>
    </tbody>
  </table>
</div>
<script>
document.write(container.scrollWidth);
</script>
```

- Webkit:

    <img width="513" height="261" alt="Image" src="https://github.com/user-attachments/assets/51f155a4-ce00-4b5c-a25e-aa7b6833764f" />

- Blink:

    <img width="513" height="261" alt="Image" src="https://github.com/user-attachments/assets/6a2aa04f-fde6-41b6-9162-fc1293b0a8d2" />


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Received on Tuesday, 3 March 2026 22:43:20 UTC