JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <article>
         <h1>Over mezelf <img src='images/plus.png' class='img'/></h1>

        <p class='p1'>Test</p>
    </article>
    <article>
         <h1>Contact <img src='images/plus.png' class='img'/></h1>

        <p class='p2'>Test</p>
    </article>
    <article>
         <h1>Website <img src='images/plus.png' class='img'/></h1>

        <p class='p3'>Test</p>
    </article>
</div>

JavaScript

$(".img").on("click", function () {
    $(this).closest("article").find("p").hide();
});