I am looking to add a HTML slideshow to the splash page of an AGOL Web App Builder custom application. I know that I can add custom html within the app, but I am unable to find the html file slide show to the splash page.

I have found a widget.html file in the .../widget/splash folder, but the file doesn't seem to contain any of what I have in the splash page currently.

the style.css file seems to be in .../widget/splash/css folder, but I can't confirm without finding the html file.

Has anyone worked on something like this or know where the html and css files are for the splash page?

EDIT: So I was able to get part of the issue resolved by just adding in some inline css and javascript. The slide reel seems to be there, but the issue now is that the pictures aren't viewable. I have tried hosting on AGOL, dropbox, and google drive with no such luck.

<div class="slideshow-container">
          * {box-sizing:border-box}

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

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

        /* Next previous buttons */
        .prev, .next {
          cursor: pointer;
          position: absolute;
          top: 50%;
          width: auto;
          margin-top: -22px;
          padding: 16px;
          color: white;
          font-weight: bold;
          font-size: 18px;
          transition: 0.6s ease;
          border-radius: 0 3px 3px 0;

        /* Position the 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}


        var slideIndex = 1;

        // Next/previous controls
        function plusSlides(n) {
          showSlides(slideIndex += n);

        // Thumbnail image controls
        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";


    <div class="mySlides fade">
        <div class="numbertext">2 / 3</div>
        <img src="https://drive.google.com/file/d/xxxxxxxx/view?usp=sharing" style="width:100%" />
        <div class="text">Caption Two</div>

    <div class="mySlides fade">
        <div class="numbertext">3 / 3</div>
        <img src="img3.jpg" style="width:100%" />
        <div class="text">Caption Three</div>

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

Splash Page

  • Have you considered placing the pictures in a folder on your server machine where the WAB app is stored and hosted? – Zachary Ordo - GISP Apr 11 at 17:43
  • Then again, that assumes you're using WAB Developer Edition... – Zachary Ordo - GISP Apr 11 at 17:46

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