JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <span>This text is a test text</span>
</div>

CSS

span{
    font-size:15pt;
}

JavaScript

$('div').each(function() {
    var $this = $(this);
    $this.html($this.text().replace(/\b(\w+)\b/g, "<span>$1</span>"));
});

$('div span').click(
    function() { 
        $(this).css('background-color','#ffff66');
    }
);