How to make a slider on the HTML CSS website

Learn to create a unique, responsive HTML/CSS slider for your website with a step-by-step example.

Creating a Slider on an HTML/CSS Website

Creating a slider on an HTML/CSS website is a great way to add visual interest and functionality to your page. Sliders are used to showcase different images or content, and can be used to create interactive experiences. In this tutorial, we’ll show you how to create a simple slider using HTML, CSS, and JavaScript. Let’s get started!

Step 1: HTML Markup

The first step is to create the HTML markup for the slider. We’ll need to create a div element with an id attribute of “slider”. Inside this div, we’ll add a ul element with an id of “slider-items”. Inside the ul, we’ll create a li element for each item we want to display in the slider. For each item, we’ll add a img tag with the source of the image, as well as a div element with the text content for the item.

<div id="slider">
  <ul id="slider-items">
    <li>
      <img src="image1.jpg" alt="Image 1">
      <div>Image 1 Content</div>
    </li>
    <li>
      <img src="image2.jpg" alt="Image 2">
      <div>Image 2 Content</div>
    </li>
    <li>
      <img src="image3.jpg" alt="Image 3">
      <div>Image 3 Content</div>
    </li>
  </ul>
</div>

Step 2: CSS Styling

Next, let’s add some CSS styles to make the slider look nice. We’ll set the width and height of the div#slider element, and set the overflow to hidden to hide any items outside of the slider. We’ll also set the width and height of the ul#slider-items element to match the width and height of the div#slider element. We’ll also set the position to relative. Finally, we’ll set the width and height of the li elements to match the width and height of the ul#slider-items element. We’ll also set the float to left so that the items will appear side by side.

#slider {
  width: 500px;
  height: 300px;
  overflow: hidden;
}

#slider-items {
  width: 500px;
  height: 300px;
  position: relative;
}

#slider-items li {
  width: 500px;
  height: 300px;
  float: left;
}

Step 3: JavaScript Functionality

Finally, let’s add the JavaScript code to make the slider work. We’ll need to create a function that will move the slider items to the left or right when a button is clicked. We’ll start by creating two variables: slider which will reference the div#slider element, and sliderItems which will reference the ul#slider-items element. We’ll also create a variable called currentPosition which will keep track of the current position of the slider. We’ll then create a function called moveSlider() which will take a parameter called direction. If the direction is 'left', the function will move the slider items to the left. If the direction is 'right', the function will move the slider items to the right.

let slider = document.getElementById('slider');
let sliderItems = document.getElementById('slider-items');
let currentPosition = 0;

function moveSlider(direction) {
  if (direction == 'left') {
    currentPosition -= 500;
    if (currentPosition < 0) {
      currentPosition = 0;
    }
  } else if (direction == 'right') {
    currentPosition += 500;
    if (currentPosition > 500) {
      currentPosition = 500;
    }
  }
  sliderItems.style.left = currentPosition + 'px';
}

We’ll also need to create two event listeners, one for the left button and one for the right button. We’ll pass the 'left' parameter to the moveSlider() function when the left button is clicked, and the 'right' parameter when the right button is clicked.

let leftButton = document.getElementById('left-button');
let rightButton = document.getElementById('right-button');

leftButton.addEventListener('click', function(){
  moveSlider('left');
});

rightButton.addEventListener('click', function(){
  moveSlider('right');
});

And that’s it! With just a few lines of code, you’ve created a simple slider using HTML, CSS, and JavaScript.