<!DOCTYPE html> <!-- webkit-test-runner [ LayoutFormattingContextEnabled=true LayoutFormattingContextIntegrationEnabled=false ] -->
<style>
table {
    border-collapse: collapse;
    border: 20px solid green;
}

td {
    width: 10px;
    height: 10px;
    border: 2px solid green;
    padding: 0px;
}
</style>
<table>
<tr><td></td><td style="border-width: 10px"></td><td></td></tr>
<tr><td></td><td style="border-width: 10px"></td><td></td></tr>
</tbody>
</table>