How to create a slider/ slideshow with CSS and JavaScript?

In web design terminology, the term Slider is used for a slideshow added to a website. Sliders can improve the look of your web page, especially if you want to show the important content of your website.

Today I’ll show you how to create a responsive slideshow with CSS and JavaScript/jQuery.

We’ll go through four kinds of slideshows, and you can later decide which one can fit your web page.

Simple Slideshow
Automatic Slideshow
Slideshow gallery
jQuery Slideshow

SIMPLE SLIDESHOW

To learn how to create a simple responsive slideshow with CSS and Javascript follow the steps below:

*slideshow opened in the Safari browser.
To see the live output click here.

Step1

Add HTML

<div class="slideshow-container">

<div class="mySlides fade">
  <div class="numbertext">1 / 3</div>
  <img src="https://your picture1" style="auto">
  <div class="text">Hello!</div>
</div>

<div class="mySlides fade">
  <div class="numbertext">2 / 3</div>
  <img src="https://your picture2" style="auto">
  <div class="text">You can write your text here!</div>
</div>

<div class="mySlides fade">
  <div class="numbertext">3 / 3</div>
  <img src="https://your picture3" style="auto">
  <div class="text">:D</div>
</div>

<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>

</div>
<br>

<div style="text-align:center">
  <span class="dot" onclick="currentSlide(1)"></span> 
  <span class="dot" onclick="currentSlide(2)"></span> 
  <span class="dot" onclick="currentSlide(3)"></span> 
</div>

Step 2.

Add CSS

* {box-sizing: border-box}
body {font-family: Verdana, sans-serif; margin:0}
.mySlides {display: none}
img {vertical-align: middle;}

/* Slideshow container */
.slideshow-container {
  max-width: 1000px;
  position: relative;
  margin: auto;
}

/* Next & previous buttons */
.prev, .next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -22px;
  color: white;
  font-weight: bold;
  font-size: 18px;
  transition: 0.6s ease;
  border-radius: 0 3px 3px 0;
  user-select: none;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover, .next:hover {
  background-color: rgba(0,0,0,0.8);
}

/* Caption text */
.text {
  color: #f2f2f2;
  font-size: 15px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}

/* Number text (1/3 etc) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}

/* The dots/bullets/indicators */
.dot {
  cursor: pointer;
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.6s ease;
}

.active, .dot:hover {
  background-color: #717171;
}

/* Fading animation */
.fade {
  -webkit-animation-name: fade;
  -webkit-animation-duration: 1.5s;
  animation-name: fade;
  animation-duration: 1.5s;
}

@-webkit-keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

@keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

/* On smaller screens, decrease text size */
@media only screen and (max-width: 300px) {
  .prev, .next,.text {font-size: 11px}
}

Step 3.

Add JavaScript

var slideIndex = 1;
showSlides(slideIndex);

function plusSlides(n) {
  showSlides(slideIndex += n);
}

function currentSlide(n) {
  showSlides(slideIndex = n);
}

function showSlides(n) {
  var i;
  var slides = document.getElementsByClassName("mySlides");
  var dots = document.getElementsByClassName("dot");
  if (n > slides.length) {slideIndex = 1}    
  if (n < 1) {slideIndex = slides.length}
  for (i = 0; i < slides.length; i++) {
      slides[i].style.display = "none";  
  }
  for (i = 0; i < dots.length; i++) {
      dots[i].className = dots[i].className.replace(" active", "");
  }
  slides[slideIndex-1].style.display = "block";  
  dots[slideIndex-1].className += " active";
}

To see the live output go to: lenastanley.com

AUTOMATIC SLIDESHOW

To learn how to create an Automatic responsive slideshow with CSS and Javascript follow the steps below:

Step 1.

Add HTML

<div class="slideshow-container">

<div class="mySlides fade">
  <div class="numbertext">1 / 3</div>
  <img src="https://your picture1" style="width:auto">
  <div class="text">Hello!</div>
</div>

<div class="mySlides fade">
  <div class="numbertext">2 / 3</div>
  <img src="https://your picture2" style="width:auto">
  <div class="text">You can tape your text here.</div>
</div>

<div class="mySlides fade">
  <div class="numbertext">3 / 3</div>
  <img src="https://your picture3" style="width:auto">
  <div class="text">:D</div>
</div>

</div>
<br>

<div style="text-align:center">
  <span class="dot"></span> 
  <span class="dot"></span> 
  <span class="dot"></span> 
</div>

Step 2.

Add CSS

* {box-sizing: border-box;}
body {font-family: Verdana, sans-serif;}
.mySlides {display: none;}
img {vertical-align: middle;}

/* Slideshow container */
.slideshow-container {
  max-width: 1000px;
  position: relative;
  margin: auto;
}

/* Caption text */
.text {
  color: #f2f2f2;
  font-size: 15px;
  padding: 8px 12px;
  position: absolute;
  bottom: 8px;
  width: 100%;
  text-align: center;
}

/* Number text (1/3 etc) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}

/* The dots/bullets/indicators */
.dot {
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbb;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.6s ease;
}

.active {
  background-color: #717171;
}

/* Fading animation */
.fade {
  -webkit-animation-name: fade;
  -webkit-animation-duration: 1.5s;
  animation-name: fade;
  animation-duration: 1.5s;
}

@-webkit-keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

@keyframes fade {
  from {opacity: .4} 
  to {opacity: 1}
}

/* On smaller screens, decrease text size */
@media only screen and (max-width: 300px) {
  .text {font-size: 11px}
}

Step 3.

Add JavaScript

var slideIndex = 0;
showSlides();

function showSlides() {
  var i;
  var slides = document.getElementsByClassName("mySlides");
  var dots = document.getElementsByClassName("dot");
  for (i = 0; i < slides.length; i++) {
    slides[i].style.display = "none";  
  }
  slideIndex++;
  if (slideIndex > slides.length) {slideIndex = 1}    
  for (i = 0; i < dots.length; i++) {
    dots[i].className = dots[i].className.replace(" active", "");
  }
  slides[slideIndex-1].style.display = "block";  
  dots[slideIndex-1].className += " active";
  setTimeout(showSlides, 3000); // Change image every 3 seconds
}

To see the live output go to: lenastanley.com

SLIDESHOW GALLERY

To learn how to create a responsive Slideshow gallery with CSS and Javascript follow the steps below:

Step 1.

Add HTML

<div class="container">
  <div class="mySlides">
    <div class="numbertext">1 / 6</div>
    <img src="https://your picture1" style="width:100%">
  </div>

  <div class="mySlides">
    <div class="numbertext">2 / 6</div>
    <img src="https://your picture2" style="width:100%">
  </div>

  <div class="mySlides">
    <div class="numbertext">3 / 6</div>
    <img src="https://your picture3" style="width:100%">
  </div>
    
  <div class="mySlides">
    <div class="numbertext">4 / 6</div>
    <img src="https://your picture4" style="width:100%">
  </div>

  <div class="mySlides">
    <div class="numbertext">5 / 6</div>
    <img src="https://your picture5" style="width:100%">
  </div>
    
  <div class="mySlides">
    <div class="numbertext">6 / 6</div>
    <img src="https://your picture6" style="width:100%">
  </div>
    
  <a class="prev" onclick="plusSlides(-1)">❮</a>
  <a class="next" onclick="plusSlides(1)">❯</a>

  <div class="caption-container">
    <p id="caption"></p>
  </div>

  <div class="row">
    <div class="column">
      <img class="demo cursor" src="https://your picture1" style="width:auto" onclick="currentSlide(1)">
    </div>
    <div class="column">
      <img class="demo cursor" src="https://your picture2" style="width:auto" onclick="currentSlide(2)">
    </div>
    <div class="column">
      <img class="demo cursor" src="https://your picture3" style="width:auto" onclick="currentSlide(3)">
    </div>
    <div class="column">
      <img class="demo cursor" src="https://your picture4" style="width:auto" onclick="currentSlide(4)">
    </div>
    <div class="column">
      <img class="demo cursor" src="https://your picture5" style="width:auto" onclick="currentSlide(5)">
    </div>    
    <div class="column">
      <img class="demo cursor" src="https://your picture6" style="width:auto" onclick="currentSlide(6)">
    </div>
  </div>
</div>

Step 2.

Add CSS

body {
  font-family: Arial;
  margin: 0;
}

* {
  box-sizing: border-box;
}

img {
  vertical-align: middle;
}

/* Position the image container (needed to position the left and right arrows) */
.container {
  position: relative;
}

/* Hide the images by default */
.mySlides {
  display: none;
}

/* Add a pointer when hovering over the thumbnail images */
.cursor {
  cursor: pointer;
}

/* Next & previous buttons */
.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 40%;
  width: auto;
  padding: 16px;
  margin-top: -50px;
  color: white;
  font-weight: bold;
  font-size: 20px;
  border-radius: 0 3px 3px 0;
  user-select: none;
  -webkit-user-select: none;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

/* Number text (1/3 etc) */
.numbertext {
  color: #f2f2f2;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
}

/* Container for image text */
.caption-container {
  text-align: center;
  background-color: #222;
  padding: 2px 16px;
  color: white;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

/* Six columns side by side */
.column {
  float: left;
  width: 16.66%;
}

/* Add a transparency effect for thumnbail images */
.demo {
  opacity: 0.6;
}

.active,
.demo:hover {
  opacity: 1;
}

Step 3.

Add JavaScript

var slideIndex = 1;
showSlides(slideIndex);

function plusSlides(n) {
  showSlides(slideIndex += n);
}

function currentSlide(n) {
  showSlides(slideIndex = n);
}

function showSlides(n) {
  var i;
  var slides = document.getElementsByClassName("mySlides");
  var dots = document.getElementsByClassName("demo");
  var captionText = document.getElementById("caption");
  if (n > slides.length) {slideIndex = 1}
  if (n < 1) {slideIndex = slides.length}
  for (i = 0; i < slides.length; i++) {
      slides[i].style.display = "none";
  }
  for (i = 0; i < dots.length; i++) {
      dots[i].className = dots[i].className.replace(" active", "");
  }
  slides[slideIndex-1].style.display = "block";
  dots[slideIndex-1].className += " active";
  captionText.innerHTML = dots[slideIndex-1].alt;
}

To see the live output go to: lenastanley.com

JQUERY SLIDESHOW

To learn how to create a jQuery Slideshow follow the steps below:

Step 1.

Add HTML

<div id="slideshow">
   <div>
     <img src="https://lenadesign.org/wp-content/uploads/2020/02/4.gif?w=580&zoom=2">
   </div>
   <div>
     <img src="https://lenadesign.org/wp-content/uploads/2020/02/webdiv.gif?w=580&zoom=2">
   </div>
    <div>
     <img src="https://lenadesign.org/wp-content/uploads/2020/02/lenad.gif?w=580&zoom=2">
   </div>
</div>

Step 2.

Add CSS

#slideshow {
  margin: 80px auto;
  position: relative;
  width: 640px;
  height: 480px;
  padding: 10px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
}

#slideshow > div {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  bottom: 10px;
}

Step 3.

Add jQuery

$(document).ready(function(){
   $("#slideshow > div:gt(0)").hide();

setInterval(function() {
  $('#slideshow > div:first')
    .fadeOut(200)
    .next()
    .fadeIn(200)
    .end()
    .appendTo('#slideshow');
}, 3000);
    slideshow.startSlideshow();
}(jQuery));

To see the live output go to: lenastanley.com.

Enjoy coding!

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