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TDAdvocate

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    Automatic SlideShow Issues

    in CSS

    Posted · Edited by TDAdvocate

    I am working to create an Automatic (Animated) and Manual (Indicators) SlideShow but having issues even getting the bases working at all. I have not started work on the Manual SlideShow yet but here is a direct link for the Automatic Animated SlideShow tutorial. When I use the w3.css and try to put the code into a CSS file separate from the HTML file it will initially load all the images into the view animated but separate from one another. I have placed the code below for further inspection and suggestions. Thank you in advance to anyone who helps me regarding this issue!

    HTML 

    <!DOCTYPE html>
<html>

	<head>

		<title>My Site</title>

		<meta name="viewport" content="width=device-width, initial-scale=1">

		<link href="/css/style.css" rel="stylesheet"/>
		<link href="/css/w3.css" rel="stylesheet"/>
		<script type="text/javascript" src="/js/script.js"></script>

	</head>

	<body>

	<!-- Slideshow Carousel Effect -->
		<div class="w3-container">
			<h2>Animated Slides</h2>
			<p>Slide or fade in an element from the top, bottom, left or right of the screen with the w3-animate-* classes.</p>
		</div>

		<div class="w3-content w3-section" style="max-width:500px">
			<img class="mySlides w3-animate-top" src="/img/img_rr_01.jpg" style="width:100%">
			<img class="mySlides w3-animate-bottom" src="/img/img_rr_02.jpg" style="width:100%">
			<img class="mySlides w3-animate-top" src="/img/img_rr_03.jpg" style="width:100%">
			<img class="mySlides w3-animate-bottom" src="/img/img_rr_04.jpg" style="width:100%">
		</div>

	<!-- Slideshow Navigation Menu -->
	<!--
		<div class="w3-content w3-display-container" style="max-width:800px">
			<img class="mySlides" src="/img/img_nature_wide.jpg" style="width:100%">
			<img class="mySlides" src="/img/img_fjords_wide.jpg" style="width:100%">
			<img class="mySlides" src="/img/img_mountains_wide.jpg" style="width:100%">
			<div class="w3-center w3-container w3-section w3-large w3-text-white w3-display-bottommiddle" style="width:100%">
		    <div class="w3-left w3-hover-text-khaki" onclick="plusDivs(-1)">&#10094;</div>
		    <div class="w3-right w3-hover-text-khaki" onclick="plusDivs(1)">&#10095;</div>
		    <span class="w3-badge demo w3-border w3-transparent w3-hover-white" onclick="currentDiv(1)"></span>
		    <span class="w3-badge demo w3-border w3-transparent w3-hover-white" onclick="currentDiv(2)"></span>
		    <span class="w3-badge demo w3-border w3-transparent w3-hover-white" onclick="currentDiv(3)"></span>
			</div>
		</div>
	-->

	</body>


</html>

    CSS 

    @charset "utf-8";

/* Slideshow Carousel Effect */
style {
  .mySlides {display:none;}
}

/* Slideshow Navigation Menu Style*/
/*
style {
  .mySlides {display:none}
  .w3-left, .w3-right, .w3-badge {cursor:pointer}
  .w3-badge {height:13px;width:13px;padding:0}
}
*/

    JS 

    //Slideshow Carousel Effect
var myIndex = 0;
carousel();

function carousel() {
    var i;
    var x = document.getElementsByClassName("mySlides");
    for (i = 0; i < x.length; i++) {
      x[i].style.display = "none";  
    }
    myIndex++;
    if (myIndex > x.length) {myIndex = 1}    
    x[myIndex-1].style.display = "block";  
    setTimeout(carousel, 2500);    
}

//Slideshow Naviagtion Effect
/*
var slideIndex = 1;
showDivs(slideIndex);

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

function currentDiv(n) {
  showDivs(slideIndex = n);
}

function showDivs(n) {
  var i;
  var x = document.getElementsByClassName("mySlides");
  var dots = document.getElementsByClassName("demo");
  if (n > x.length) {slideIndex = 1}    
  if (n < 1) {slideIndex = x.length}
  for (i = 0; i < x.length; i++) {
     x[i].style.display = "none";  
  }
  for (i = 0; i < dots.length; i++) {
     dots[i].className = dots[i].className.replace(" w3-white", "");
  }
  x[slideIndex-1].style.display = "block";  
  dots[slideIndex-1].className += " w3-white";
}
*/

    EDIT: When checking the Console in Google Chrome I get the following error:  

    script.js:13 Uncaught TypeError: Cannot read property 'style' of undefined
    at carousel (script.js:13)
    at script.js:3

     

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