JSFiddle - React, Tailwind, and code Playground

HTML

<table class="test">
    <tr>
        <td>Cell</td>
        <td>Cell</td>
        <td>Cell</td>
    </tr>
    <tr>
        <td>Cell</td>
        <td>Cell</td>
        <td>Cell</td>
    </tr>
    <tr>
        <td>Cell</td>
        <td>Cell</td>
        <td>Cell</td>
    </tr>
</table>

CSS

table.test td {
    background-color: lime;
    margin: 12px 12px 12px 12px;
    padding: 12px 12px 12px 12px;
}
table.test {
  border-collapse: separate;
  border-spacing: 10px;
  *border-collapse: expression('separate', cellSpacing = '10px');
}