Tiny Mobile-friendly 3D Carousel In JavaScript – Slider-overflow.js

Yet another tiny, responsive, touch-enabled 3D carousel component that features autoplay, custom controls, and more.

How to use it:

1. Build the HTML structure for the carousel.

<div class="slider">
  <div class="slider__inner">
    <!-- Slides -->
    <div class="slider__item">
     <div class="slider__item-container">
        <img src="1.jpg" class="slider__item-img"/>
        <div class="slider__item-datas">
          <span>Description 1</span>
        </div>
      </div>
    </div>
    <div class="slider__item">
     <div class="slider__item-container">
        <img src="2.jpg" class="slider__item-img"/>
        <div class="slider__item-datas">
          <span>Description 2</span>
        </div>
      </div>
    </div>
    <div class="slider__item">
     <div class="slider__item-container">
        <img src="3.jpg" class="slider__item-img"/>
        <div class="slider__item-datas">
          <span>Description 3</span>
        </div>
      </div>
    </div>
    ...
    <!-- Slider Controls -->
    <div class="slider__controls"></div>
  </div>
</div>

2. The necessary CSS styles.

.slider {
  position: relative;
  width: 100%;
  max-width: 100%;
}
.slider .slider__inner {
  display: flex;
  position: relative;
  align-items: center;
  max-width: 750px;
  height: 400px;
  margin: 0 auto;
}
.slider .slider__inner .slider__item {
  position: absolute;
  height: 150px;
  width: 150px;
  opacity: 0;
  transition: all 0.3s ease-in-out;
  z-index: -1;
  pointer-events: none;
  user-select: none;
}
.slider .slider__inner .slider__item-trigger-next {
  left: 15%;
  transform: translateX(-50%);
}
.slider .slider__inner .slider__item-trigger-previous {
  left: 85%;
  transform: translateX(-50%);
}
.slider .slider__inner .slider__item-selected {
  box-shadow: 0 0 30px rgba(255, 255, 255, 0.6), 0 0 60px rgba(255, 255, 255, 0.45), 0 0 110px rgba(255, 255, 255, 0.25), 0 0 100px rgba(255, 255, 255, 0.1);
  height: 300px;
  opacity: 1;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  z-index: 2;
}
.slider .slider__inner .slider__item-previous, .slider .slider__inner .slider__item-next {
  height: 200px;
  opacity: 1;
  width: 200px;
  z-index: 1;
}
.slider .slider__inner .slider__item-last, .slider .slider__inner .slider__item-first {
  opacity: .4;
  z-index: 0;
}
.slider .slider__inner .slider__item-previous {
  left: 30%;
  transform: translateX(-50%);
}
.slider .slider__inner .slider__item-next {
  left: 70%;
  transform: translateX(-50%);
}
.slider .slider__inner .slider__item-first {
  left: 15%;
  transform: translateX(-50%);
}
.slider .slider__inner .slider__item-last {
  left: 85%;
  transform: translateX(-50%);
}
.slider .slider__inner .slider__item-container {
  position: relative;
  width: 100%;
  height: 100%;
}
.slider .slider__inner .slider__item-img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.slider .slider__inner .slider__item-datas {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: .5rem 0;
  background-color: rgba(255, 255, 255, 0.75);
  text-align: center;
  font-family: 'Arial';
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.slider .slider__controls {
  display: flex;
  position: absolute;
  left: 0;
  right: 0;
  width: 100%;
  justify-content: space-between;
  align-items: center;
}
.slider .slider__controls-previous, .slider .slider__controls-next {
  border: 0;
  cursor: pointer;
  font-size: 50px;
  background-color: transparent;
  color: rgba(0, 0, 0, 0.75);
  padding: 0;
}
.slider .slider__controls-previous:focus, .slider .slider__controls-next:focus {
  outline: none;
}

3. Hide the controls on mobile devices.

@media (max-width: 750px) {
  .slider .slider__controls {
    display: none;
  }
}

4. Import the main JavaScript carousel.js into the document.

<script src="carousel.js"></script>

// or
import './carousel.js';

5. Initialize the carousel and done.

const myCarousel = new Carousel({
      container: document.querySelector('.slider'),
      items: document.querySelectorAll('.slider__item')
});

6. Add custom controls to the carousel. In this example, we’re going to use Font Awesome for the icons.

const myCarousel = new Carousel({
      container: document.querySelector('.slider'),
      items: document.querySelectorAll('.slider__item'),
      displayControls: true,
      controlsContainer: document.querySelector('.slider__controls'),
      textControls: ["<i class='fas fa-chevron-left'></i>", "<i class='fas fa-chevron-right'></i>"]
});

7. Config the autoplay behavior.

const myCarousel = new Carousel({
      container: document.querySelector('.slider'),
      items: document.querySelectorAll('.slider__item'),
      autoplay: true,
      autoplayTime: 3500
});