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HTML 

              
                <link href="https://fonts.googleapis.com/css?family=Montserrat:700" rel="stylesheet">
<div class="slider_container">
	<div class="slides">
		<img src="https://media3.giphy.com/media/559q8yZTM50wtLnpaM/giphy.gif" alt="Biker one" class="img">
		<img src="https://images.unsplash.com/photo-1558981403-c5f9899a28bc?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&w=1000&q=80" alt="Biker two" class="img">
		<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcSPgWmF3rNlB0Bejlc7iAjd8lT6K5POa8LChg&usqp=CAU" alt="Biker three" class="img">
		<img src="https://i.pinimg.com/originals/d6/62/15/d662153aee1accf457c81f2334e2d9f3.jpg" alt="Biker four" class="img">
	</div>
	<nav class="slider_navigation">
		<div class="navigation-buttons">
			<button class="button button-left"></button>
			<button class="button button-right"></button>
			<label class="autoplay-controls">
				<input type="checkbox" name="autoplay" checked>
				<div class="checkmark"></div>
				<div class="autoplay-sub">Autoplay</div>
			</label>
		</div>
		<span class="slide_counter"></span>
	</nav>
</div>
!

CSS 

              
                // *** variables ** //
$animationStyle: cubic-bezier(1, 1.59, .61, .74)
$slideHeight: 100vh
$slideWidth: 100%
$speed: .5s

*
	outline: none
	font-family: 'Montserrat', sans-serif !important
	box-sizing: border-box
body
	display: flex	
	justify-content: center
.button, .checkmark
	background-color: #3c709b
	border: 0
	border-radius: 50%
	box-shadow: 0 0 0 0 rgba(190, 190, 220, .2)
	color: white
	height: 30px
	margin: 0 .5rem 0 0
	cursor: pointer
	position: relative
	transition: box-shadow .2s
	width: 30px
	&:hover
		background-color: #25445d
	&:active
		background: #2196F3
		box-shadow: 0 0 15px 40px rgba(220, 220, 250, 0)
.autoplay-controls
	cursor: pointer
	&:active > .checkmark
		background: #2196F3
		box-shadow: 0 0 15px 40px rgba(220, 220, 250, 0)	
.slider_container
	align-items: center
	display: flex
	flex-direction: column
	min-height: $slideHeight
	width: $slideWidth
	position: relative
.slide_counter
	display: flex
	align-items: center
.slides
	height: $slideHeight
	overflow: hidden
	position: relative
	width: $slideWidth
.navigation-buttons
	display: inherit
	align-items: center
	flex-direction: row
	justify-content: center
.slider_navigation
	padding: 1rem
	background-color: rgba(150,150,150,.6)
	display: flex
	flex-direction: row	
	justify-content: space-between
	position: absolute
	bottom: 0
	width: 100%
	z-index: 300
.loader
	background-color: white
	background-image: url('https://editionsdelarose.com/wp-content/themes/edr/img/loading.gif')
	background-position: center center
	background-repeat: no-repeat
	background-size: 150px
	height: 100%
	position: absolute
	width: 100%
	z-index: 300
input
	display: none
	&:checked ~ .checkmark:after
		display: block
	&:checked ~ .checkmark
		background-color: #2196F3
.autoplay-sub
	float: left
	line-height: 30px
	font-size: .7rem

.checkmark
	float: left
	&:after
		content: ""
		position: absolute
		display: none
		left: 11px
		top: 7px
		width: 5px
		height: 10px
		border: solid white
		border-width: 0 3px 3px 0
		transform: rotate(45deg)
.button-left:after, .button-right:after
		border: solid white
		border-width: 0 3px 3px 0
		content: ""
		display: block
		height: 8px		
		position: absolute
		width: 8px
.button-left:after
		left: 11px
		top: 10px
		transform: rotate(135deg)
.button-right:after
		left: 7px
		top: 10px
		transform: rotate(-45deg)


// *** animation in and out *** //
// *** left *** //
.inright
	animation: goInL $speed $animationStyle 
	position: relative
	z-index: 300 !important
@keyframes goInL
	0%
		left: -$slideWidth
	100%
		left: 0

.outright
	animation: goOutL $speed $animationStyle
	position: relative
	z-index: 200
@keyframes goOutL
	0%
		left: 0
	100%
		left: $slideWidth

// *** right *** //
.inleft
	animation: goInR $speed $animationStyle
	position: relative
	z-index: 300 !important
@keyframes goInR
	0%
		left: $slideWidth
	100%
		left: 0

.outleft
	animation: goOutR $speed $animationStyle
	position: relative
	z-index: 200
@keyframes goOutR
	0%
		left: 0
	100%
		left: -$slideWidth
.img
	left: 0
	min-height: $slideHeight
	max-height: $slideHeight
	object-fit: cover
	position: absolute
	width: $slideWidth
	background-color: silver
	&:first-child
		z-index: 100
!

JS 

              
                // *** VARIABLES *** //
const autoBox = document.querySelector("input[name=autoplay]"),
	autoDir = "left", // left or right
	btnLeft = document.querySelector(".button-left"),
	btnRight = document.querySelector(".button-right"),
	loader = document.createElement("div"),
	counter = document.querySelector(".slide_counter"),
	slider = document.querySelector(".slides"),
	slides = document.querySelectorAll(".slides img"),
	SPEED = 2000; // = 2s

let count = 0,
    autoplay = null;

// *** Create loader *** //
loader.classList.add("loader");
slider.appendChild(loader);
// *** Hide loader when everything is loaded *** //
document.onreadystatechange = () => {
	if (document.readyState === "complete") {
		loader.hidden = true;
	}
};

// *** Initialize counter *** //
updateCounter();

// *** Start slideshow if hardcoded -checked- *** //
if (autoBox.checked) {
	autoplay = setInterval(slide.bind(this, "auto"), SPEED);
}

// *** Listen buttons for call *** //
btnLeft.addEventListener("click", () => slide("right"));
btnRight.addEventListener("click", () => slide("left"));

autoBox.addEventListener("change", () => {
	// *** If autoplay is checked then play slides, if not then stop *** //
	if (autoBox.checked) {
		autoplay = setInterval(() => slide("auto"), SPEED);
	} else {
		stopInterval();
	}
});

// *** Change slide *** //
function slide(direction) {
	// *** If left or right button were clicked, stop autoplay *** //
	if (direction === "right" || direction === "left") {
		stopInterval();
	}
	// *** If direction is 'auto' then slide to 'autoDir' - variable at the top, otherwise swipe in choosen direction *** //
	direction = direction == "auto" ? autoDir : direction;
	// *** Clear all previously added classes from every photo. *** //
	[].forEach.call(slides, (photo) => {
		photo.classList.remove("outleft", "outright");
	});
	slides[count].classList.remove("inleft", "inright");
	// *** Add class from sliding out photo *** //
	slides[count].classList.add("out" + direction);

	// *** Update counter - if clicked right button count -1, else count +1 *** //
	count = direction == "right" ? count - 1 : count + 1;
	// *** Looping slides *** //
	// *** if reached end go to first slide *** //
	if (count > slides.length - 1) {		
		count = count % slides.length;
	} 
	// *** if reached first go to last one *** //
	if (count < 0) {
		count = slides.length - 1;	
	} 

	// *** Add class for sliding in photo *** //
	slides[count].classList.add("in" + direction);
	// *** Update counter *** //
	updateCounter();
}
// *** counter *** //
function updateCounter(){
	counter.innerText = count + 1 + " of " + slides.length;
}

// *** Stop slideshow *** //
function stopInterval() {
	clearInterval(autoplay);
	autoplay = null;
	autoBox.checked = false;
}
// *** The End *** //
!
999px

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