Modern Image Carousel With Or Without Thumbnails

A simple, modern-looking, JavaScript-driven image carousel for the web.

How to use it:

1. Add images together with captions and slider controls to the carousel.

<!-- Without Thumbnails -->
<div class="carousel-sliders">
  <div class="carousel-sliders-inner">
    <div class="slide active">
      <img alt="Slide 1" src="1.jpg" />
      <div class="carousel-caption">
        <h3>Slide 1</h3>
        <p>Slide 1 Content</p>
      </div>
    </div>
    <div class="slide">
      <img alt="Slide 2" src="2.jpg" />
      <div class="carousel-caption">
        <h3>Slide 2</h3>
        <p>Slide 2 Content</p>
      </div>
    </div>
    <div class="slide">
      <img alt="Slide 3" src="3.jpg" />
      <div class="carousel-caption">
        <h3>Slide 3</h3>
        <p>Slide 3 Content</p>
      </div>
    </div>
  </div> 
  <div class="carousel-controls left">
    <div tabindex="0" class="prevSlide" role="button">
      <span class="prevIcon"></span>
      <span class="sr-only">Previous</span>
    </div> 
  </div>
  <div class="carousel-controls right">    
    <div tabindex="0" class="nextSlide" role="button">
      <span class="nextIcon"></span>
      <span class="sr-only">Next</span>
    </div>
  </div>                     
  <ul class="carousel-indicators">
    <li tabindex="0" role="button" class="active" aria-disabled="false"></li>
    <li tabindex="0" role="button" aria-disabled="true"></li>
    <li tabindex="0" role="button" aria-disabled="true"></li>
  </ul>            
</div>

<!-- With Thumbnails -->
<div class="carousel-controls-below">
  <div class="carousel-thumbnail-horizontal" data-has-next="1" data-has-previous="0">
    <div class="carousel-thumbnail-inner">
      <div class="carousel-thumbnail-scroller">
        <div class="thumbnail active" tabindex="0" role="button" aria-label="Thumbnail 1">
          <picture>
            <img alt="Thumbnail 1" src="thumb-1.jpg" />
          </picture>
        </div>
        <div class="thumbnail" tabindex="0" role="button" aria-label="Thumbnail 2">
          <picture>
            <img alt="Thumbnail 2" src="thumb-2.jpg" />
          </picture>
        </div>
        <div class="thumbnail" tabindex="0" role="button" aria-label="Thumbnail 3">
          <picture>
            <img alt="Thumbnail 3" src="thumb-3.jpg" />
          </picture>
        </div>
          </div>
      </div>
  </div>            
  <div class="thumbnail-prev" tabindex="0" role="button">
    <span class="thumbnail-prev-icon"></span>
    <span class="sr-only">Thumbnail Previous</span>
  </div>
  <div class="thumbnail-next" tabindex="0" role="button">
    <span class="thumbnail-next-icon"></span>
    <span class="sr-only">Thumbnail Next</span>
  </div>
</div>

2. The necessary CSS styles for the carousel.

/* Without Thumbnails */
.carousel-sliders {
  position: relative;
  width: 710px;
  margin: auto;
  height: 400px;
}
.carousel-sliders-inner {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.carousel-caption {
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  z-index: 10;
  padding: 20px;
  color: #fff;
  text-align: center;
  background: rgba(0, 0, 0, 0.4);
}
.carousel-caption h3 {
  margin-top: 0;
  margin-bottom: 0;
  transform: translate(-100%, 0);
}
.carousel-caption p {
  opacity: 0;
  transform: translate3D(0, 0, 0);
}
.slide {
  position: relative;
  display: none;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  width: 100%;
  -webkit-animation-name: fade;
  -webkit-animation-duration: 1s;
  animation-name: fade;
  animation-duration: 1s;
}
@-webkit-keyframes fade {
  from {
    opacity: 0
  }
  to {
    opacity: 1
  }
}
@keyframes fade {
  from {
    opacity: 0
  }
  to {
    opacity: 1
  }
}
.slide.active .carousel-caption h3 {
  transform: translate(0, 0);
  animation: titleAnimtion 1s;
}
@keyframes titleAnimtion {
  0% {
    transform: translate(-100%, 0);
  }
  100% {
    transform: translate(0, 0);
  }
}
.slide.active .carousel-caption p {
  transform: translate3D(0, 0, 0);
  opacity: 1;
  animation: textAnimtion 1s;
}
@keyframes textAnimtion {
  0% {
    transform: translate3D(0, 60px, 0);
    opacity: 0;
  }
  100% {
    transform: translate3D(0, 0, 0);
    opacity: 1;
  }
}
.slide.active {
  display: block;
}
.slide img {
  width: 100%;
}
.carousel-controls {
  width: 15%;
  position: absolute;
  top: 0;
  bottom: 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}
.carousel-controls.left {
  left: 0;
}
.carousel-controls.right {
  right: 0;
}
.prevSlide,
.nextSlide {
  cursor: pointer;
  width: 50px;
  height: 50px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 50%;
}
.prevSlide.inactive,
.nextSlide.inactive {
  cursor: default;
}
.prevSlide.inactive .prevIcon {
  border-right-color: #717070;
}
.nextSlide.inactive .nextIcon {
  border-left-color: #717070;
}
.prevIcon {
  margin: 10px 12px;
  display: inline-block;
  border-top: 15px solid transparent;
  border-right: 15px solid #ffffff;
  border-bottom: 15px solid transparent;
}
.nextIcon {
  margin: 10px 20px;
  display: inline-block;
  border-top: 15px solid transparent;
  border-left: 15px solid #ffffff;
  border-bottom: 15px solid transparent;
}
.carousel-indicators {
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  z-index: 15;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  padding-left: 0;
  margin-right: 15%;
  margin-left: 15%;
  list-style: none;
}
.carousel-indicators li {
  cursor: pointer;
  position: relative;
  -webkit-box-flex: 0;
  -ms-flex: 0 1 auto;
  flex: 0 1 auto;
  width: 30px;
  height: 4px;
  margin-right: 3px;
  margin-left: 3px;
  text-indent: -999px;
  background-color: rgba(255, 255, 255, .5);
}
.carousel-indicators .active {
  background-color: #fff;
  cursor: default;
}

/* With Thumbnails */
.carousel-sliders {
  position: relative;
  width: 710px;
  margin: auto;
}
.carousel-sliders-inner {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.carousel-caption {
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  z-index: 10;
  padding: 20px;
  color: #fff;
  text-align: center;
  background: rgba(0, 0, 0, 0.4);
}
.carousel-caption h3 {
  margin-top: 0;
  margin-bottom: 0;
  transform: translate(-100%, 0);
}
.carousel-caption p {
  opacity: 0;
  transform: translate3D(0, 0, 0);
}
.slide {
  position: relative;
  display: none;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  width: 100%;
  -webkit-animation-name: fade;
  -webkit-animation-duration: 1s;
  animation-name: fade;
  animation-duration: 1s;
}
@-webkit-keyframes fade {
  from {
    opacity: 0
  }
  to {
    opacity: 1
  }
}
@keyframes fade {
  from {
    opacity: 0
  }
  to {
    opacity: 1
  }
}
.slide.active .carousel-caption h3 {
  transform: translate(0, 0);
  animation: titleAnimtion 1s;
}
@keyframes titleAnimtion {
  0% {
    transform: translate(-100%, 0);
  }
  100% {
    transform: translate(0, 0);
  }
}
.slide.active .carousel-caption p {
  transform: translate3D(0, 0, 0);
  opacity: 1;
  animation: textAnimtion 1s;
}
@keyframes textAnimtion {
  0% {
    transform: translate3D(0, 60px, 0);
    opacity: 0;
  }
  100% {
    transform: translate3D(0, 0, 0);
    opacity: 1;
  }
}
.slide.active {
  display: block;
}
.slide img {
  width: 100%;
}
.carousel-controls {
  width: 15%;
  position: absolute;
  top: 0;
  bottom: 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}
.carousel-controls.left {
  left: 0;
}
.carousel-controls.right {
  right: 0;
}
.prevSlide,
.nextSlide {
  cursor: pointer;
  width: 50px;
  height: 50px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 50%;
}
.prevSlide.inactive,
.nextSlide.inactive {
  cursor: default;
}
.prevSlide.inactive .prevIcon {
  border-right-color: #717070;
}
.nextSlide.inactive .nextIcon {
  border-left-color: #717070;
}
.prevIcon {
  margin: 10px 12px;
  display: inline-block;
  border-top: 15px solid transparent;
  border-right: 15px solid #ffffff;
  border-bottom: 15px solid transparent;
}
.nextIcon {
  margin: 10px 20px;
  display: inline-block;
  border-top: 15px solid transparent;
  border-left: 15px solid #ffffff;
  border-bottom: 15px solid transparent;
}
.carousel-indicators {
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  z-index: 15;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  padding-left: 0;
  margin-right: 15%;
  margin-left: 15%;
  list-style: none;
}
.carousel-indicators li {
  cursor: pointer;
  position: relative;
  -webkit-box-flex: 0;
  -ms-flex: 0 1 auto;
  flex: 0 1 auto;
  width: 30px;
  height: 4px;
  margin-right: 3px;
  margin-left: 3px;
  text-indent: -999px;
  background-color: rgba(255, 255, 255, .5);
}
.carousel-indicators .active {
  background-color: #fff;
  cursor: default;
}
.carousel-controls-below {
  display: flex;
  flex-flow: column;
  align-items: center;
  position: relative;
}
.carousel-thumbnail-horizontal {
  position: relative;
  display: flex;
  flex-direction: row;
  z-index: 10;
  overflow: hidden;
  transition: opacity .4s ease;
  width: 100%;
}
.carousel-thumbnail-inner {
  position: relative;
  flex-basis: 0;
  flex-grow: 1;
  overflow-x: scroll;
  background: #242424;
  opacity: 1;
}
.carousel-thumbnail-inner::-webkit-scrollbar {
  width: 0;
  height: 0;
  background: transparent;
}
.carousel-thumbnail-scroller {
  display: grid;
  min-width: 100%;
  width: -moz-fit-content;
  width: -webkit-fit-content;
  width: fit-content;
  grid-auto-flow: column;
  grid-auto-columns: min-content;
  justify-content: flex-start;
}
.carousel-thumbnail-inner .thumbnail {
  cursor: pointer;
  opacity: 0.3;
}
.carousel-thumbnail-inner .thumbnail.active {
  cursor: default;
  opacity: 1;
}
.carousel-thumbnail-inner .thumbnail picture {
  display: inline-block;
}
.carousel-thumbnail-inner .thumbnail img {
  height: 80px;
  width: auto;
}
.thumbnail-prev {
  position: absolute;
  transition: all 0.4s;
  cursor: pointer;
  left: -100px;
  z-index: -1;
  transition: 1s all linear;
  width: 30px;
  height: 30px;
  background: rgba(0, 0, 0, 0.8);
  border-radius: 50%;
  border: #FFF 2px solid;
  top: 50%;
  margin-top: -21px;
  opacity: 0;
}
.thumbnail-prev.enable {
  left: 10px;
  z-index: 10;
  opacity: 1;
  animation: moveleft 1s linear;
}
@keyframes moveleft {
  from {
    left: -100px;
    z-index: -1;
    opacity: 0;
  }
  to {
    left: 10px;
    z-index: 10;
    opacity: 1;
  }
}
.thumbnail-next {
  position: absolute;
  transition: all 0.4s;
  cursor: pointer;
  right: -100px;
  z-index: -1;
  transition: 1s all linear;
  width: 30px;
  height: 30px;
  background: rgba(0, 0, 0, 0.8);
  border-radius: 50%;
  border: #FFF 2px solid;
  top: 50%;
  margin-top: -21px;
  opacity: 0;
}
.thumbnail-next.enable {
  right: 10px;
  z-index: 10;
  opacity: 1;
  animation: moveright 1s linear;
}
@keyframes moveright {
  from {
    right: -100px;
    z-index: -1;
    opacity: 0;
  }
  to {
    right: 10px;
    z-index: 10;
    opacity: 1;
  }
}
.thumbnail-prev-icon {
  margin: 7px 9px;
  display: inline-block;
  border-top: 8px solid transparent;
  border-right: 8px solid #ffffff;
  border-bottom: 8px solid transparent;
}
.thumbnail-next-icon {
  margin: 7px 12px;
  display: inline-block;
  border-top: 8px solid transparent;
  border-left: 8px solid #ffffff;
  border-bottom: 8px solid transparent;
}

3. Include the required JavaScript on the page. Done.

<!-- Without Thumbnails -->
<script src="carousel.js"></script>
<!-- With Thumbnails -->
<script src="carousel_thumbnail.js"></script>