To create a multiple image slider in HTML and CSS, you need to follow these steps: HTML structure: Create a container for the slider and inside it, add two divs for the slides. One for the right side and one for the left side. You can also add buttons for navigation. CSS styling: Style the container and the two slide divs to have the desired width and height. You can also add styles for the buttons. Adding images: Add images to the slide divs as background images and adjust the background-position property to create a sliding effect. JavaScript functionality: Use JavaScript to add functionality to the navigation buttons and change the background-position property on button click. Testing: Test the slider to make sure it works as expected and make any necessary adjustments. Note: You can use CSS transitions to create a smooth sliding effect.