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W3.CSS Slideshow



Manual Slideshow

Displaying a manual slideshow with W3.CSS is very easy.

Just create many elements with the same class name:

Example

<img class="mySlides" src="img_fjords.jpg">
<img class="mySlides" src="img_lights.jpg">
<img class="mySlides" src="img_mountains.jpg">
<img class="mySlides" src="img_forest.jpg">

And two buttons to scroll the images:

Example

<a class="w3-btn-floating" onclick="plusDivs(-1)">&#10094;</a>
<a class="w3-btn-floating" onclick="plusDivs(+1)">&#10095;</a>

And add a JavaScript to select images:

Example

var slideIndex = 1;
showDivs(slideIndex);

function plusDivs(n) {
    showDivs(slideIndex += n);
}

function showDivs(n) {
    var i;
    var x = document.getElementsByClassName("mySlides");
    if (n > x.length) {slideIndex = 1}
    if (n < 1) {slideIndex = x.length} ;
    for (i = 0; i < x.length; i++) {
        x[i].style.display = "none";
    }
    x[slideIndex-1].style.display = "block";
}
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JavaScript Explained

First, set the slideIndex to 1. (First picture)

Then call showDivs() to display the first image.

When the user clicks one of the buttons call plusDivs().

The plusDivs() function subtracts one or  adds one to the slideIndex.

The showDiv() function hides (display="none") all elements with the class name "mySlides", and displays (display="block") the element with the given slideIndex.

If the slideIndex is higher than the number of elements (x.length), the slideIndex is set to zero.

If the slideIndex is less than 1 it is set to number of elements (x.length).


Automatic Slideshow

To display an automatic slideshow is even simpler.

You only need a little different JavaScript:

Example

var slideIndex = 0;
carousel();

function carousel() {
    var i;
    var x = document.getElementsByClassName("mySlides");
    for (i = 0; i < x.length; i++) {
      x[i].style.display = "none";
    }
    slideIndex++;
    if (slideIndex > x.length) {slideIndex = 1}
    x[slideIndex-1].style.display = "block";
    setTimeout(carousel, 2000);
}
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HTML Slides

The slides do not have to be images.

They can be any HTML content:

Example

<div class="mySlides">
  <div class="w3-container w3-orange">
  <h1><b>Did You Know?</b></h1>
  <h1><i>We plan to sell trips to the moon in the 2020s</i></h1>
</div>
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Slideshow Caption

Trolltunga, Norway
Northern Lights, Norway
Beautiful Mountains
The Rain Forest
Mountains!

Add a caption text for each image slide with the w3-display-* classes (topleft, topright, bottomleft, bottomright or middle):

Example

<div class="w3-display-container mySlides">
  <img src="img_fjords.jpg" style="width:100%">
  <div class="w3-display-bottomleft w3-container w3-padding-16 w3-black">
    Trolltunga, Norway
  </div>
</div>
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Slideshow Indicators

An example of using buttons to indicate how many slides there are in the slideshow, and which slide the user is currently viewing.

Example

<div class="w3-center">
  <button class="w3-btn" onclick="plusDivs(-1)">&#10094; Prev</button>
  <button class="w3-btn" onclick="plusDivs(1)">Next &#10095;</button>

  <button class="w3-btn demo" onclick="currentDiv(1)">1</button>
  <button class="w3-btn demo" onclick="currentDiv(2)">2</button>
  <button class="w3-btn demo" onclick="currentDiv(3)">3</button>
</div>
Try It Yourself »

Another example:

Example

<div class="w3-content w3-display-container">
  <img class="mySlides" src="img_nature.jpg">
  <img class="mySlides" src="img_fjords.jpg">
  <img class="mySlides" src="img_mountains.jpg">
  <div class="w3-center w3-display-bottomleft" style="width:100%">
    <div class="w3-left" onclick="plusDivs(-1)">&#10094;</div>
    <div class="w3-right" onclick="plusDivs(1)">&#10095;</div>
    <span class="w3-badge demo w3-border" onclick="currentDiv(1)"></span>
    <span class="w3-badge demo w3-border" onclick="currentDiv(2)"></span>
    <span class="w3-badge demo w3-border" onclick="currentDiv(3)"></span>
  </div>
</div>
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Animated Slides

Example

<img class="mySlides w3-animate-top"    src="img_01.jpg">
<img class="mySlides w3-animate-bottom" src="img_02.jpg">
<img class="mySlides w3-animate-top"    src="img_03.jpg">
<img class="mySlides w3-animate-bottom" src="img_04.jpg">
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Faded Animation

Example

<img class="mySlides w3-animate-fading" src="img_01.jpg">
<img class="mySlides w3-animate-fading" src="img_02.jpg">
<img class="mySlides w3-animate-fading" src="img_03.jpg">
<img class="mySlides w3-animate-fading" src="img_04.jpg">
Try It Yourself »