JSFiddle - React, Tailwind, and code Playground

HTML

<div id="ccc_new_val_hdn">
    <span>9</span>
    <span>,</span>
    <span> </span>
    <span>6</span>
    <span>2</span>
    <span>1</span>
</div>

CSS

span {
    display: inline-block;
    padding: 10px;
    font-size: 3em;
    font-family: Helvetica, Verdana, Arial;
}

.comma, .space {
    color: #FFF;
    background-color: #222;
}

JavaScript

jQuery.expr[':'].hasText = function(element, index, meta) {
    var textToSearch = meta[3];
    return $(element).text() == textToSearch;
};

$(':hasText(,)').addClass('comma');
$(':hasText( )').addClass('space');