2 Feb 2023

Implementing a responsive image slider using HTML, CSS, and JavaScript


Responsive image sliders are a common design element in modern websites. They are used to display a series of images in a visually appealing manner, and provide users with the ability to navigate through the images. In this blog, we will explore how to implement a responsive image slider using HTML, CSS, and JavaScript.


The HTML code for our image slider will consist of an unordered list of images. Each image will be placed inside a list item, and the entire list will be wrapped in a container element.

<div class="slider-container">
  <ul class="slider">
    <li class="slide">
      <img src="image1.jpg" alt="Image 1">
    <li class="slide">
      <img src="image2.jpg" alt="Image 2">
    <li class="slide">
      <img src="image3.jpg" alt="Image 3">


We will use CSS to style the slider and make it responsive. The slider container will have a fixed width and height, and we will use overflow: hidden to hide any images that are outside the container.

.slider-container {
  width: 800px;
  height: 500px;
  overflow: hidden;
  margin: 0 auto;

.slider {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;

.slide {
  position: absolute;
  width: 100%;
  height: 100%;

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;


We will use JavaScript to control the navigation of the images. The JavaScript code will handle the logic for showing the next and previous images, as well as the logic for automatically advancing the images.

var slideIndex = 0;
var slides = document.querySelectorAll('.slide');

function showSlides() {
  for (var i = 0; i < slides.length; i++) {
    slides[i].style.display = 'none';


  if (slideIndex > slides.length) {
    slideIndex = 1;

  slides[slideIndex - 1].style.display = 'block';

  setTimeout(showSlides, 3000);



With these three technologies, we have implemented a simple, yet effective, responsive image slider. By combining HTML, CSS, and JavaScript, we are able to create a user-friendly design that is both aesthetically pleasing and functional. This responsive image slider can be easily customized to meet the specific needs of any website, and is a great way to showcase images in a dynamic and engaging manner.