JSFiddle - React, Tailwind, and code Playground

HTML

<table celpadding=0 cellspacing=0>
    <tr>
        <td></td><td></td><td></td>
    </tr>
    <tr>
        <td></td><td></td><td></td>
    </tr>
    <tr>
        <td></td><td></td><td></td>
    </tr>
</table>

CSS

body {
    background: #014c6b;
}

table {
    background: #013a55;
}

td {
    width: 200px;
    height: 100px;
    border-left: 2px solid #103748;
    border-bottom: 2px solid #103748;
    border-top: 1px solid rgba(215,215,215,0.1);
    border-right: 1px solid rgba(215,215,215,0.1);
    padding: 0;
    margin: 0;
}