JSFiddle - React, Tailwind, and code Playground

by er144

HTML

<table class="outer" cellspacing="10" cellpadding="0">
    <tr><td><table class="inner"><tr><td>bbb</td></tr></table></td>
        <td><table class="inner"><tr><td>bbb</td></tr></table></td>
        <td><table class="inner"><tr><td>bbb</td></tr></table></td>
    </tr>
    <tr><td><table class="inner"><tr><td>a</td></tr></table></td>
        <td><table class="inner"><tr><td>a</td></tr></table></td>
        <td><table class="inner"><tr><td>a</td></tr></table></td>
    </tr>
</table>

CSS

.outer
{ border: 1px solid black;}
.inner
{ border: 1px solid black;
width: 100%;
}