A vertical slider can be created in HTML and CSS using the following steps:

1. HTML structure: Create a container element for the slider and two child elements for the slides. For example, you can create a “slider-container” class element that contains two “slide” class elements.

<div class="slider-container">
<div class="slide">Slide 1</div>
<div class="slide">Slide 2</div>
</div>

2. CSS: Use CSS to set the width and height of the slider container and the slides. Also, set the position of the slides to absolute and set the top property of the second slide to the height of the container.

.slider-container {
position: relative;
width: 100%;
height: 300px;
overflow: hidden;
}

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

.slide:nth-child(2) {
top: 100%;
}

3. JavaScript: Use JavaScript to toggle the top property of the slides to switch between the two slides. You can add buttons or use any other interaction method to trigger the toggle.

const sliderContainer = document.querySelector('.slider-container');
const slides = sliderContainer.querySelectorAll('.slide');
let currentSlide = 0;

const toggleSlide = () => {
slides[currentSlide].style.top = '-100%';
currentSlide = currentSlide === 0 ? 1 : 0;
slides[currentSlide].style.top = '0';
}

document.querySelector('.toggle-button').addEventListener('click', toggleSlide);

To create a multiple image slider in HTML and CSS, you need to follow these steps:

1. 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.

2. 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.

3. Adding images: Add images to the slide divs as background images and adjust the background-position property to create a sliding effect.

4. JavaScript functionality: Use JavaScript to add functionality to the navigation buttons and change the background-position property on button click.

5. 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.

Here are the steps to make a vertical slider in HTML and CSS:

1. Create a container element for your slider, for example, a div element with a class of “slider-container”.
2. Inside the container element, create two more elements, one for the right side of the slider and another for the left side of the slider, each with a different class name.
3. For each slide, create a separate div element within the right and left elements.
4. Style the slider container to have a specific height and width and to be positioned relatively.
5. Style the right and left elements with a fixed height and width, positioned absolutely within the container, and set their top and bottom properties to 0.
6. Style each slide to have the same height and width as the right and left elements and position them absolutely within their respective elements.
7. Use CSS transform: translateY() property to control the vertical movement of the slides within the right and left elements.
8. Add navigation buttons, for example, up and down buttons, to control the movement of the slides.
9. Use JavaScript to detect the button clicks and update the transform property of the right and left elements accordingly.
10. Optionally, you can add styles for active and inactive slides, animations, and responsiveness to enhance the overall look and functionality of your slider.

To create a vertical carousel in HTML, you need to follow these steps:

1. Create the HTML structure: Start by creating a container for your carousel and define the individual slides within it using the appropriate HTML tags such as divs or sections.

2. Style the container:

3. Style the slides: 

4. Implement the carousel functionality: 

5. Implement the slide transition:  

6. Add navigation elements:  

7. Fine-tune the styling and functionality as needed: 

Here are the steps to create a vertical image slider using HTML, CSS and JavaScript:

1. Create an HTML structure: Create a container element to hold the slider and add two other elements, one for the slides to be displayed on the right and the other for slides to be displayed on the left. Each slide should be in a separate div element.

2. Add CSS styles

3. Use JavaScript to change slides

4. Add event listeners

5. Customize the slider