JSFiddle - React, Tailwind, and code Playground

by Palpatim

HTML

<div class="col3 bannergroup">
    <div class="banneritem">
         <h1>Lorem Ipsum 1</h1>

        <p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.</p> <a href="#" title="Jetzt unverbindliches Angebot anfordern" class="btn orange">Wir freuen uns auf Ihr Projekt.</a>

    </div>
    <div class="banneritem">
         <h1>Lorem Ipsum 2</h1>

        <p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.</p> <a href="#" title="Jetzt unverbindliches Angebot anfordern" class="btn orange">Wir freuen uns auf Ihr Projekt.</a>

    </div>
    <div class="banneritem">
         <h1>Lorem Ipsum 3</h1>

        <p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem...

CSS

.banneritem {
    display:none;
}
.banneritem:first-child {
    display: block;
}

JavaScript

var current = 1;
var max = $('.banneritem').length;

/**
 * @param n 1-based number of element to display
 *          (nth-child is 1-based, so expecting n to be 1-based as well)
 */
function displayBanner(n) {
    if (n === undefined) {
        n = current;
    }
    if (n > max) {
        n = 1;
    }
    // Takes advantage of the no-arg variant of hide() pre-empts the animation queue,
    // so the actual order of execution will be:
    // 1) hide siblings; 2) fadeIn nth-child
    $('div.banneritem:nth-child(' + n + ')').fadeIn(600).siblings('.banneritem').hide();
    current = n + 1;
}

displayBanner();
var interval = setInterval(displayBanner, 2000);

$('.slider-control-nav a').each(function (i, el) {
    $(el).click(function () {
        clearInterval(interval);
        displayBanner(i + 1);
        interval = setInterval(displayBanner, 2000);
    });
});