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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <p>Below is a gallery where every item is the same size and centered. We could use this to paginate book like content.</p>
<p>&nbsp;</p>
<div id="paginated_content" class="gallery">
  <div class="gallery_scroller">
    <div class="colored_card"> </div>
    <div class="colored_card"> </div>
    <div class="colored_card"> </div>
    <div class="colored_card"> </div>
    <div class="colored_card"> </div>
    <div class="colored_card"> </div>
    <div class="colored_card"> </div>
    <div class="colored_card"> </div>
    <div class="colored_card"> </div>
    <div class="colored_card"> </div>
  </div>
  <span class="btn prev"></span>
  <span class="btn next"></span>
</div>


            
          
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              html, body {
  padding: 0;
  position: absolute;
  left: 0;
  right: 0;

  font-size: 20px;
}

// .gallery {
//   position: relative;
//   max-width: 800px;
//   padding: 0 10;
// }

.gallery_scroller {
   /* snap mandatory on horizontal axis  */
  scroll-snap-type: x mandatory;

  overflow-x: scroll;
  overflow-y: hidden;

  display: flex;
  align-items: center;

  height: 90vh;
}


.gallery_scroller div {
   /* snap align center  */
  scroll-snap-align: start;
  margin: 10px;
  position: relative;
}

.gallery_scroller div.colored_card {
  min-width: 90vw;
  min-height: 95vh;
  border-radius: 10px;
 }

.gallery div.note {
  position: absolute;

  /* vertically align center */
  top:  50%;
  transform: translateY(-50%);
  left: 0;
  right: 0;

  background: rgba(0,0,0, 0.6);
  padding: 20px;
  position: absolute;

  font-size: 4em;
  color: white;
}


.gallery .btn {
  position: absolute;

  top: 50%;
  transform: translateY(-50%);

  height: 30px;
  width: 30px;

  border-radius: 2px;
  background-color: rgba(0,0,0,0.5);
  background-position: 50% 50%;
  background-repeat: no-repeat;

  z-index: 1;
}

.gallery .btn.next {
  background-image: url('data:image/svg+xml;charset=utf-8,<svg width="18" height="18" viewBox="0 0 34 34" xmlns="http://www.w3.org/2000/svg"><title>Shape</title><path d="M25.557 14.7L13.818 2.961 16.8 0l16.8 16.8-16.8 16.8-2.961-2.961L25.557 18.9H0v-4.2z" fill="%23FFF" fill-rule="evenodd"/></svg>');
  right: 10px;
}

.gallery .btn.prev {
  background-image: url('data:image/svg+xml;charset=utf-8,<svg width="18" height="18" viewBox="0 0 34 34" xmlns="http://www.w3.org/2000/svg"><title>Shape</title><path d="M33.6 14.7H8.043L19.782 2.961 16.8 0 0 16.8l16.8 16.8 2.961-2.961L8.043 18.9H33.6z" fill="%23FFF" fill-rule="evenodd"/></svg>');
  left: 10px;
}

.gallery_scroller > div.colored_card:nth-of-type(1) { background-color: #e8eaf6; }
.gallery_scroller > div.colored_card:nth-of-type(2) { background-color: #c5cae9; }
.gallery_scroller > div.colored_card:nth-of-type(3) { background-color: #9fa8da; }
.gallery_scroller > div.colored_card:nth-of-type(4) { background-color: #7986cb; }
.gallery_scroller > div.colored_card:nth-of-type(5) { background-color: #5c6bc0; }
.gallery_scroller > div.colored_card:nth-of-type(6) { background-color: #3f51b5; }
.gallery_scroller > div.colored_card:nth-of-type(7) { background-color: #3949ab; }
.gallery_scroller > div.colored_card:nth-of-type(8) { background-color: #303f9f; }
.gallery_scroller > div.colored_card:nth-of-type(9) { background-color: #283593; }
.gallery_scroller > div.colored_card:nth-of-type(10) { background-color: #1a237e; }

            
          
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              const gallery = document.querySelector('#paginated_content');
const gallery_scroller = gallery.querySelector('.gallery_scroller');
const gallery_item_size = gallery_scroller.querySelector('div').clientWidth;

gallery.querySelector('.btn.next').addEventListener('click', scrollToNextPage);
gallery.querySelector('.btn.prev').addEventListener('click', scrollToPrevPage);

// For paginated scrolling, simply scroll the gallery one item in the given
// direction and let css scroll snaping handle the specific alignment.
function scrollToNextPage() {
  gallery_scroller.scrollBy(gallery_item_size, 0);
}

function scrollToPrevPage() {
  gallery_scroller.scrollBy(-gallery_item_size, 0);
}

function updateAlignment(event) {
  const alignment = event.target.value;
  for (item of gallery.querySelectorAll('.gallery_scroller > div'))
    item.style.scrollSnapAlign = alignment;

  // Currently changing scroll alignment does not force a re-snap in Chrome.
  // This is a bug: http://crbug.com/866127
  // In meantime, if desired a scroll snap can be triggered using a small 
  // scripted scroll e.g.: `gallery_scroller.scrollBy(1, 0);`
}

            
          
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