JSFiddle - React, Tailwind, and code Playground

by Cone

HTML

<div class="demo2">
    <div id="progressBar" class="default">
        <div></div>
    </div>	<span class="img">
			<img src="http://www.mrwallpaper.com/wallpapers/Yamaha-Motorcycle-YZF-R6.jpg?1373742338" />
			<img src="http://www.usabobbers.com/wp-content/uploads/2012/01/Yamaha-XS650-Lime-Green-Bobber-Motorcycle.jpeg?1373742338" />
			<img src="http://wallpoper.com/images/00/38/49/40/american-cars_00384940.jpg?1373742338" />
			<img src="http://wallpoper.com/images/00/26/14/38/cars-saleen_00261438.jpg?1373742338" />
		</span>

</div>

CSS

.default {
    background: #292929;
    border: 1px solid #111;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 0 5px #333;
}
.default div {
    background-color: #1a82f7;
    background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#0099FF), to(#1a82f7));
    background: -webkit-linear-gradient(top, #0099FF, #1a82f7);
    background: -moz-linear-gradient(top, #0099FF, #1a82f7);
    background: -ms-linear-gradient(top, #0099FF, #1a82f7);
    background: -o-linear-gradient(top, #0099FF, #1a82f7);
}
#progressBar {
    margin-left: 100px;
    width: 400px;
    height: 22px;
}
#progressBar div {
    height: 100%;
    color: #fff;
    text-align: right;
    font-size: 12px;
    line-height: 22px;
    width: 0;
}
#page {
    margin: 0 auto;
    width: 600px;
}
a {
    color: #777;
    text-decoration: none;
    display: inline-block;
}
a:hover {
    color: #333;
}
.bar {
    background-color: #f4f4f4;
    color: #333;
    box-shadow: 0px 0px 2px #333;
    line-height: 22px;
    padding: 2px 20px 0;
    font-family:'Josefin Sans', sans-serif;
    font-weight: 400;
    font-size: 13px;
    overflow: hidden;
}
.bar:hover {
    opacity: 1;
}
.bar a {
    color: #333;
}
.bar a:hover {
    color: #000;
    text-decoration: underline;
}
h1 {
    padding: 0;
    margin: 60px 0 60px;
    color: #282828;
    font-family:'Josefin Sans', sans-serif;
    font-weight: 400;
    text-align: center;
    font-size: 45px;
    line-height: 40px;
    text-align: center;
}
p {
    font-size: 20px;
    font-family:'Josefin Sans', sans-serif;
    line-height: 26px;
}
.steps {
    margin: 20px 0;
    text-align: center;
}
.steps a {
    padding: 3px 0px;
    margin: 0 10px;
    text-decoration: none;
    font-size: 15px;
    color: #777;
}
.steps a:hover {
    color: #111;
}
small {
    font-weight: 100;
}
#ad {
    width: 468px;
    padding: 5px 5px 0 5px;
    background-color: #e3e3e3;
    float: left;
    box-shadow: 0 0 3px #999;
    margin-top: 30px;
    margin-left:...

JavaScript

function progressBar(percent, $element) {
    var progressBarWidth = percent * $element.width() / 100;
    $element.find('div').animate({
        width: progressBarWidth
    }, 500).html(percent + "%&nbsp;");
}

var numberOfImages = $('.img img').length,
		numberOfLoaded = 0,
		step = 100 / numberOfImages;
	
	$('.img img').each( function (i, item) {
		$(item).load( function () {
			numberOfLoaded++;
			progressBar(step * numberOfLoaded, $('#progressBar'));
		});
	});