JSFiddle - React, Tailwind, and code Playground

HTML

<div id="someDiv">
    <p>Starting Content</p>
</div>

<button id="getMore">Get more content</button>

<div id="capa">

</div>

JavaScript

$.fn.getMoreContent = function()
{
    var collection = this;

    $.ajax( {
        url: '/echo/html/',
        type: 'POST',
        dataType: 'html',
        data: {
            html: '<p>More content</p>',
            delay: 1
        },
        success: function( data )
        {
            collection.append( data );
        }
    } );

    return collection;
};

$( '#getMore' ).click( function( e )
{
    $( '#someDiv' ).getMoreContent().css( 'color', '#f00' );
    e.preventDefault();
     $("#capa").load("https://www.barcodelookup.com/9784757511552 #img_preview");
} );