JSFiddle - React, Tailwind, and code Playground

HTML

<table>    
    <tr>
        <td>text</td>
        <td>text</td>
    </tr>
    <tr>
        <td>text</td>
        <td>text</td>
    </tr>
     <tr>
        <td>text</td>
        <td>text</td>
    </tr>
</table>

CSS

tr {
    position: relative;
}
tr:after {
    position:absolute;
    display: block;
    content: "";    
    width: 100%;
    height: 10px;
    background: red;
    left: 0;
    top: 0;
}