JSFiddle - React, Tailwind, and code Playground

by Jordan Sayner

HTML

<div class="slider" data-slider>
        <div class="slider__slides">
            <div class="slider__slide" style="background-color: #ff6347;">Slide 1</div>
            <div class="slider__slide" style="background-color: #4682b4;">Slide 2</div>
            <div class="slider__slide" style="background-color: #32cd32;">Slide 3</div>
        </div>
        <button class="prev">❮</button>
        <button class="next">❯</button>
        <div class="slider__info">
            <span class="current-slide">1</span> / <span class="total-slides"></span>
        </div>
    </div>

    <div class="slider" data-slider>
        <div class="slider__slides">
            <div class="slider__slide" style="background-color: #ffa500;">Slide 1</div>
            <div class="slider__slide" style="background-color: #800080;">Slide 2</div>
            <div class="slider__slide" style="background-color: #00ced1;">Slide 3</div>
        </div>
        <button class="prev">❮</button>
        <button class="next">❯</button>
        <div class="slider__info">
            <span class="current-slide">1</span> / <span class="total-slides"></span>
        </div>
    </div>

CSS

body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin: 0;
    padding: 20px;
    background-color: #f0f0f0;
}

.slider {
    position: relative;
    width: 80%;
    max-width: 600px;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.slider__slides {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slider__slide {
    min-width: 100%;
    aspect-ratio: 16/9;
    padding: 40px;
    box-sizing: border-box;
    color: white;
    text-align: center;
    font-size: 24px;
}

button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0,0,0,0.5);
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
    z-index: 1000;
}

button.prev {
    left: 10px;
}

button.next {
    right: 10px;
}

button:hover {
    background-color: rgba(0,0,0,0.8);
}

JavaScript

const sliders = document.querySelectorAll('[data-slider]');

sliders.forEach(slider => {
    const slides = slider.querySelector('.slider__slides');
    const slideElements = slider.querySelectorAll('.slider__slide');
    const slideCount = slideElements.length;
    const currentSlideElement = slider.querySelector('.current-slide');
    const totalSlidesElement = slider.querySelector('.total-slides');
    let currentIndex = 0;

    // Set the total number of slides in the slider__info element
    totalSlidesElement.textContent = slideCount;

    const updateSlidePosition = () => {
        slides.style.transform = `translateX(-${currentIndex * 100}%)`;
        // Update the current slide number
        currentSlideElement.textContent = currentIndex + 1;
    };

    const handleResize = () => {
        updateSlidePosition();
    };

    window.addEventListener('resize', handleResize);

    slider.querySelector('.next').addEventListener('click', () => {
        currentIndex = (currentIndex + 1) % slideCount;
        updateSlidePosition();
    });

    slider.querySelector('.prev').addEventListener('click', () => {
        currentIndex = (currentIndex - 1 + slideCount) % slideCount;
        updateSlidePosition();
    });

    // Initial update to set the correct positions and slide number
    updateSlidePosition();
});