Pure CSS Content Slider with Keyboard Navigation

A simple and fully responsive content slider with CSS3 transitions and keyboard & arrows navigation, built with plain Html and pure CSS/CSS3. Created by dp_lewis.

How to use it:

Build the Html structure for a content slider as follows.

<form>
  <input type="radio" name="fancy"  value="slide1" id="slide1" />
  <input type="radio" name="fancy" value="slide2" id="slide2" />
  <input type="radio" name="fancy" value="slide3" id="slide3" />
  <input type="radio" name="fancy" value="slide4" id="slide4" />
  <label for="slide1">Slide 1</label>
  <label for="slide2">Slide 2</label>
  <label for="slide3">Slide 3</label>
  <label for="slide4">Slide 4</label>
</form>

The required CSS to style and animate the content slider.

label {
  background: #444;
  color: #fff;
  -webkit-transition: -webkit-transform 400ms ease-out;
  transition: transform 400ms ease-out;
  display: inline-block;
  min-height: 100%;
  width: 100vw;
  height: 100vh;
  position: relative;
  z-index: 1;
  text-align: center;
  line-height: 100vh;
}
form {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  white-space: nowrap;
}
input { position: absolute; }
input:focus ~ .keys { opacity: 0.8; }
input:nth-of-type(1):checked ~ label:nth-of-type(1),
input:nth-of-type(2):checked ~ label:nth-of-type(2),
input:nth-of-type(3):checked ~ label:nth-of-type(3),
input:nth-of-type(4):checked ~ label:nth-of-type(4) { z-index: 0; }
input:nth-of-type(1):checked ~ label {
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
}
input:nth-of-type(2):checked ~ label {
  -webkit-transform: translate3d(-100%, 0, 0);
  transform: translate3d(-100%, 0, 0);
}
input:nth-of-type(3):checked ~ label {
  -webkit-transform: translate3d(-200%, 0, 0);
  transform: translate3d(-200%, 0, 0);
}
input:nth-of-type(4):checked ~ label {
  -webkit-transform: translate3d(-300%, 0, 0);
  transform: translate3d(-300%, 0, 0);
}
label {
  background: #444;
  -webkit-background-size: cover;
  background-size: cover;
  font-size: 3rem;
}
label:before,
label:after {
  color: white;
  display: block;
  background: rgba(255,255,255,0.2);
  position: absolute;
  padding: 1rem;
  font-size: 3rem;
  height: 10rem;
  vertical-align: middle;
  line-height: 10rem;
  top: 50%;
  -webkit-transform: translate3d(0, -50%, 0);
  transform: translate3d(0, -50%, 0);
  cursor: pointer;
}
label:before {
  content: "\3e";
  right: 100%;
  border-top-left-radius: 50%;
  border-bottom-left-radius: 50%;
}
label:after {
  content: "\3c";
  left: 100%;
  border-top-right-radius: 50%;
  border-bottom-right-radius: 50%;
}