<!DOCTYPE html> <link rel="author" title="David Grogan" href="mailto:dgrogan@chromium.org"> <link rel="help" href="https://www.w3.org/TR/CSS22/tables.html#collapsing-borders"> <link rel="help" href="https://drafts.csswg.org/css-tables-3/#border-conflict-resolution-algorithm"> <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/606"> <link rel="match" href="subpixel-collapsed-borders-ref.html"> <meta name="assert" content="When collapsed border tables have border widths larger than cells', the table border wins even when the cell border is merely 0.01 pixels narrower" /> <style> table { border: 5px solid green; border-collapse: collapse; } td { width: 50px; height: 50px; border: 4.99px solid red; } </style> <p>There should be a square with a green border, not a red border. </p> <table> <tr> <td></td> </tr> </table>