JSFiddle - React, Tailwind, and code Playground

HTML

<div class="thumbs">
    <a href="thehref">thumb here</a>
</div>

<div class="boat_listing">
    <div class="mainGallery">
        the original content here
    </div>
</div>

JavaScript

$(".thumbs a").click(function(e) {
    e.preventDefault();
    $imgURL = $(this).attr("href");
    $(".boat_listing .mainGallery").hide();
    $(".boat_listing .mainGallery").html($imgURL).fadeIn(400);
});