JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
    <header>
         <h1>Simple slideshow css3</h1> 
    </header>
    <div id="slider">
        <ul>
            <li title="prova titolo">
                <img src="http://demo.ndstyle.it/simple-slideshow-css3/images/slide/1.jpg" alt="1" width="940" height="350" />
            </li>
            <li>
                <img src="http://demo.ndstyle.it/simple-slideshow-css3/images/slide/2.jpg" alt="2" width="940" height="350" />
            </li>
            <li>
                <img src="http://demo.ndstyle.it/simple-slideshow-css3/images/slide/3.jpg" alt="3" width="940" height="350" />
            </li>
            <li>
                <img src="http://demo.ndstyle.it/simple-slideshow-css3/images/slide/4.jpg" alt="4" width="940" height="350" />
            </li>
            <li>
                <img src="http://demo.ndstyle.it/simple-slideshow-css3/images/slide/5.jpg" alt="5" width="940" height="350" />
            </li>
        </ul>
    </div>
    <footer>
        <p>&copy; Copyright by <a href="http://blog.ndstyle.it" title="blog ndstyle">Danilo Virotta</a> | <a href="http://blog.ndstyle.it/semplice-slideshow-css3/" title="semplice slide con i css3">Torna all'articolo</a>
        </p>
    </footer>
</div>

CSS

/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License:none (public domain)
*/
 html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {
    margin:0;
    padding:0;
    border:0;
    font-size:100%;
    font:inherit;
    vertical-align:baseline
}
/* HTML5 display-role reset for older browsers */
 article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
    display:block
}
body {
    line-height:1
}
ol, ul {
    list-style:none
}
blockquote, q {
    quotes:none
}
blockquote:before, blockquote:after, q:before, q:after {
    content:'';
    content:none
}
table {
    border-collapse:collapse;
    border-spacing:0
}
/*all element rendered the declared width, and any border and padding cut inside the box*/
 * {
    -moz-box-sizing:border-box;
    -webkit-box-sizing:border-box;
    box-sizing:border-box
}
/*general style*/
 body {
    color:#333
}
h1, h2, h3, h4, h5, h6 {
    margin-bottom:0.6em;
    font-weight:normal;
    line-height:1em;
    color:#4C4D48
}
h1 {
    font-size:160%
}
h2 {
    font-size:130%
}
h3 {
    font-size:110%
}
h4 {
    font-size:100%
}
h5 {
    font-size:90%
}
h6 {
    font-size:80%
}
p {
    margin:0 0 10px 0;
    padding:0;
    line-height:170%;
    font-size:90%
}
p:last-child {
    margin:0
}
strong {
    font-weight: 900
}
a {
    outline:none;
    color:#022945
}
a:hover {
    text-decoration:none
}
#wrapper {
    margin:0 auto;
    padding:0;
    width:960px
}
header {
    margin:40px 0;
    float:left;
    width:960px;
    text-align:center
}
footer {
 ...