JSFiddle - React, Tailwind, and code Playground

HTML

<div id="redDiv">
    <table id="blueTable">
        <tr>
            <td>
                Content
            </td>
        </tr>
    </table>
</div>

CSS

#redDiv {
    width: 250.5px;
    height: 250px;
    background-color: red;
}

#blueTable {
    width: 100%;
    background-color: blue;
}