JSFiddle - React, Tailwind, and code Playground

HTML

<img src="http://static.php.net/www.php.net/images/php.gif"/><img src="http://static.php.net/www.php.net/images/php.gif"/>

CSS

img.image-loading {
    visibility: hidden;       
}

JavaScript

var $imgs = $("img");

$imgs.addClass('image-loading');


(function updateImages() {
    setTimeout(function() {
        $imgs.one("load", function() {

            $(this).removeClass('image-loading');

            // to manually trigger onload if image is in cache
        }).each(function() {
            if (this.complete) {
                $(this).trigger("load");
            }
        });
        updateImages();
    }, 100);
})();