Pure HTML / CSS Fullscreen Slideshow

A pure HTML/CSS/CSS3 responsive fullscreen slideshow that allows to fade though a group of background images.

How to use it:

Add your images as backgrounds to the slideshow.

<div class="container">
  
  <div data-am-gallery>
    <!-- Radio -->
    <input type="radio" name="gallery" id="img-1" checked />
    <input type="radio" name="gallery" id="img-2" />
    <input type="radio" name="gallery" id="img-3" />
    <!-- Images -->
    <div class="images">
      <div class="image" style="background-image: url(1.jpg);"></div>
      <div class="image" style="background-image: url(2.jpg);"></div>
      <div class="image" style="background-image: url(3.jpg);"></div>
    </div>
    <!-- Navigation -->
    <div class="navigation">
      <label class="dot" for="img-1"></label>
      <label class="dot" for="img-2"></label>
      <label class="dot" for="img-3"></label>
    </div>
  </div>
  
</div>

The core CSS/CSS3 styles for the slideshow.

[data-am-gallery] {
 position: relative;
 width: 100%;
 height: 100%;
 background-color: #fff;
/* Navigation */
}
[data-am-gallery] input[type="radio"] {
  position: fixed;
  top: -9999px;
}
[data-am-gallery] input[type="radio"]:checked:nth-child(5) ~ .images .image:nth-child(5) { opacity: 1; }
[data-am-gallery] input[type="radio"]:checked:nth-child(5) ~ .navigation .dot:nth-child(5) { background-color: #29acbb; }
[data-am-gallery] input[type="radio"]:checked:nth-child(5) ~ .navigation .dot:nth-child(5):hover { opacity: 1; }
[data-am-gallery] input[type="radio"]:checked:nth-child(4) ~ .images .image:nth-child(4) { opacity: 1; }
[data-am-gallery] input[type="radio"]:checked:nth-child(4) ~ .navigation .dot:nth-child(4) { background-color: #29acbb; }
[data-am-gallery] input[type="radio"]:checked:nth-child(4) ~ .navigation .dot:nth-child(4):hover { opacity: 1; }
[data-am-gallery] input[type="radio"]:checked:nth-child(3) ~ .images .image:nth-child(3) { opacity: 1; }
[data-am-gallery] input[type="radio"]:checked:nth-child(3) ~ .navigation .dot:nth-child(3) { background-color: #29acbb; }
[data-am-gallery] input[type="radio"]:checked:nth-child(3) ~ .navigation .dot:nth-child(3):hover { opacity: 1; }
[data-am-gallery] input[type="radio"]:checked:nth-child(2) ~ .images .image:nth-child(2) { opacity: 1; }
[data-am-gallery] input[type="radio"]:checked:nth-child(2) ~ .navigation .dot:nth-child(2) { background-color: #29acbb; }
[data-am-gallery] input[type="radio"]:checked:nth-child(2) ~ .navigation .dot:nth-child(2):hover { opacity: 1; }
[data-am-gallery] input[type="radio"]:checked:nth-child(1) ~ .images .image:nth-child(1) { opacity: 1; }
[data-am-gallery] input[type="radio"]:checked:nth-child(1) ~ .navigation .dot:nth-child(1) { background-color: #29acbb; }
[data-am-gallery] input[type="radio"]:checked:nth-child(1) ~ .navigation .dot:nth-child(1):hover { opacity: 1; }
[data-am-gallery] .image {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  opacity: 0;
  -webkit-transition: opacity 400ms ease;
  transition: opacity 400ms ease;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
[data-am-gallery] .navigation {
  position: absolute;
  bottom: 15px;
  left: 50%;
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
}
[data-am-gallery] .dot {
  display: inline-block;
  width: 15px;
  height: 15px;
  margin: 0 2px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  -webkit-transition: opacity 200ms ease;
  transition: opacity 200ms ease;
}
[data-am-gallery] .dot:hover { opacity: 0.8; }

Make the slideshow fullscreen.

body { margin: 0; }
.container {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}