JSFiddle - React, Tailwind, and code Playground

HTML

<table id="tablica">
    <thead>
        <th id="bla">Bla</th>
        <th id="bli">Bli</th>
        <th id="blu">Blu</th>
    </thead>
    <tbody>
        <tr id="jedan">
            <td>1</td>            
            <td>2</td>
            <td>3</td>
        </tr>
        <tr id="dva">
            <td>4</td>            
            <td>5</td>
            <td>6</td>
        </tr>
        <tr id="tri">
            <td>7</td>            
            <td>8</td>
            <td>9</td>
        </tr>
    </tbody>
</table>

JavaScript

$("#dva").find("td:contains(5)").css({"background-color":"red"});