<div class="slider-container">
      <div class="slide">
        <h2>Airpods</h2>
        <h4>$199</h4>
        <img src="https://i.ibb.co/y08W0Jx/image1.png" alt="" />
        <a href="#" class="btn">Buy Now</a>
      </div>
      <div class="slide">
        <h2>iPhone 12</h2>
        <h4>$799</h4>
        <img src="https://i.ibb.co/NYdGg2q/image2.png" alt="" />
        <a href="#" class="btn">Buy Now</a>
      </div>
      <div class="slide">
        <h2>iPad</h2>
        <h4>$599</h4>
        <img src="https://i.ibb.co/Jd3t4hQ/image3.png" alt="" />
        <a href="#" class="btn">Buy Now</a>
      </div>
    </div>

@import url('https://fonts.googleapis.com/css2?family=Open+Sans&display=swap');

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  font-family: 'Open Sans', sans-serif;
  height: 100%;
  width: 100%;
  overflow: hidden;
  background-color: #333;
  color: #fff;
  line-height: 1.7;
}

.slider-container {
  height: 100vh;
  display: inline-flex;
  overflow: hidden;
  transform: translateX(0);
  transition: transform 0.3s ease-out;
  cursor: grab;
}

.slide {
  max-height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  user-select: none;
}

.slide img {
  max-width: 100%;
  max-height: 60%;
  transition: transform 0.3s ease-in-out;
}

.slide h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.slide h4 {
  font-size: 1.3rem;
}

.btn {
  background-color: #444;
  color: #fff;
  text-decoration: none;
  padding: 1rem 1.5rem;
}

.grabbing {
  cursor: grabbing;
}

.grabbing .slide img {
  transform: scale(0.9);
}

/*
  This JS is from the following project:
  https://github.com/bushblade/Full-Screen-Touch-Slider
*/

const slider = document.querySelector('.slider-container'),
  slides = Array.from(document.querySelectorAll('.slide'))

let isDragging = false,
  startPos = 0,
  currentTranslate = 0,
  prevTranslate = 0,
  animationID = 0,
  currentIndex = 0

slides.forEach((slide, index) => {
  const slideImage = slide.querySelector('img')
  slideImage.addEventListener('dragstart', (e) => e.preventDefault())

  // Touch events
  slide.addEventListener('touchstart', touchStart(index))
  slide.addEventListener('touchend', touchEnd)
  slide.addEventListener('touchmove', touchMove)

  // Mouse events
  slide.addEventListener('mousedown', touchStart(index))
  slide.addEventListener('mouseup', touchEnd)
  slide.addEventListener('mouseleave', touchEnd)
  slide.addEventListener('mousemove', touchMove)
})

// Disable context menu
window.oncontextmenu = function (event) {
  event.preventDefault()
  event.stopPropagation()
  return false
}

function touchStart(index) {
  return function (event) {
    currentIndex = index
    startPos = getPositionX(event)
    isDragging = true

    // https://css-tricks.com/using-requestanimationframe/
    animationID = requestAnimationFrame(animation)
    slider.classList.add('grabbing')
  }
}

function touchEnd() {
  isDragging = false
  cancelAnimationFrame(animationID)

  const movedBy = currentTranslate - prevTranslate

  if (movedBy < -100 && currentIndex < slides.length - 1) currentIndex += 1

  if (movedBy > 100 && currentIndex > 0) currentIndex -= 1

  setPositionByIndex()

  slider.classList.remove('grabbing')
}

function touchMove(event) {
  if (isDragging) {
    const currentPosition = getPositionX(event)
    currentTranslate = prevTranslate + currentPosition - startPos
  }
}

function getPositionX(event) {
  return event.type.includes('mouse') ? event.pageX : event.touches[0].clientX
}

function animation() {
  setSliderPosition()
  if (isDragging) requestAnimationFrame(animation)
}

function setSliderPosition() {
  slider.style.transform = `translateX(${currentTranslate}px)`
}

function setPositionByIndex() {
  currentTranslate = currentIndex * -window.innerWidth
  prevTranslate = currentTranslate
  setSliderPosition()
}