Manual Slideshow

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

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Just create many elements with the same class name:

var slideIndex = 1;showDivs(slideIndex);function plusDivs(n) function showDivs(n)   if (n < 1) ;  for (i = 0; i < x.length; i++) = "block"; }

JavaScript Explained

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

Then Gọi showDivs() lớn display the first image.

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

The plusDivs() function subtracts one or  adds one to lớn 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.

Xem thêm: function length php

If the slideIndex is less than 1 it is mix khổng lồ number of elements (x.length).

var slideIndex = 0;carousel();function carousel()   slideIndex++;  if (slideIndex > x.length) = "block";   setTimeout(carousel, 2000); // Change image every 2 seconds}

Did You Know?


We plan to lớn sell trips khổng lồ the moon in the 2020s

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

    French Alps 

Slideshow Indicators

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



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Images as Indicators

An example of using images as indicators:



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Multiple Slideshows on the Same Page

To operate multiple slideshows on one page, you must class the members of each slideshow group with different classes:


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Animated Slides

Slide or fade in an element from the top, bottom, left or right of the screen with the w3-animate-* classes.


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Faded Animation

The w3-animate-fading class fades an element in & out (takes about 10 seconds).