JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<title>Untitled 1</title>

<style type="text/css">

</style>
</head>

<body>

<div style="width: 600px; border: 1px purple solid;">

<p>Some text at the top.  Notice that the margin collapse does not work unless display:block.</p>

<table>
    <tr>
        <th></th>
        <th>Header 1</th>
        <th>Header 2</th>
        <th>Header 3</th>
    </tr>
    <tr>
        <td>Label 1</td>
        <td>1.A</td>
        <td>1.B</td>
        <td>1.c</td>
    </tr>
    <tr>
        <td>Label 2</td>
        <td>2.A</td>
        <td>2.B</td>
        <td>2.c</td>
    </tr>
</table>

<p>Some text at the bottom.  Notice that the margin collapse does not work unless display:block.  Its stupid.</p>


</div>

</body>

</html>

CSS

table
{
    border-collapse: collapse;
    border-spacing: 0;
}

table
{
    margin: 10px 0;
    width: 100%;
}

p
{
    margin: 10px 0;
}

td, th
{
    border: 1px solid #000000;
}