JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li><a class="readmore">Read More</a> 
        <div class="pop">this ts the text</div>
    </li>
    <li>
<a class="readmore">Read More</a> 
        <div class="pop">this ts the text</div>
    </li>
    <ul>

CSS

.pop {
    display:none;
}

JavaScript

$(document).ready(function () {
    $(".readmore").click(function () {
        $(this).siblings(".pop").slideToggle();
        return false;
    });
});