JSFiddle - React, Tailwind, and code Playground

by jquery4u

HTML

<div>d
    <p>p</p>
        <p>p</p>
        <p>p</p>
</div>

<div>d
    <p>p</p>
        <p>p</p>
        <p>p</p>
</div>

<div>d</div>

<p>p</p>

CSS

.border {
    border: 1px solid blue;
}
div {
    margin-bottom: 20px;
}

JavaScript

$(function()
  {
     $("div").find("p").andSelf().addClass("border"); 
  });