JSFiddle - React, Tailwind, and code Playground

HTML

<h1>тракторы</h1>
<h1>факторы</h1>
<h1>Фракталы</h1>

CSS

h1 {
    font-size:20px;
    color:#085991;
    text-align:center;
}

JavaScript

$('h1').each(function(){
    var ht = $(this).text();
    if(ht=='факторы'){
        $(this).css('color','red');
    }
});