Pure CSS Parallax Scrolling

index.html

<div id="title" class="slide header">
  <h1>Pure CSS Parallax</h1>
</div>

<div id="slide1" class="slide">
  <div class="title">
    <h1>Slide 1</h1>
    <p>Lorem ipsum dolor sit amet, in velit iudico mandamus sit, persius dolorum in per, postulant mnesarchum cu nam. Malis movet ornatus id vim, feugait detracto est ea, eam eruditi conceptam in. Ne sit explicari interesset. Labores perpetua cum at. Id viris docendi denique vim.</p>
  </div>
</div>

<div id="slide2" class="slide">
  <div class="title">
    <h1>Slide 2</h1>
    <p>Lorem ipsum dolor sit amet, in velit iudico mandamus sit, persius dolorum in per, postulant mnesarchum cu nam. Malis movet ornatus id vim, feugait detracto est ea, eam eruditi conceptam in. Ne sit explicari interesset. Labores perpetua cum at. Id viris docendi denique vim.</p>
  </div>
  <img src="http://lorempixel.com/640/480/abstract/6/">
  <img src="http://lorempixel.com/640/480/abstract/4/"> 
</div>

<div id="slide3" class="slide">
  <div class="title">
    <h1>Slide 3</h1>
    <p>Lorem ipsum dolor sit amet, in velit iudico mandamus sit, persius dolorum in per, postulant mnesarchum cu nam. Malis movet ornatus id vim, feugait detracto est ea, eam eruditi conceptam in. Ne sit explicari interesset. Labores perpetua cum at. Id viris docendi denique vim.</p>
  </div>
</div>

<div id="slide4" class="slide header">
    <h1>The End</h1>
</div>

pure-css-parallax-scrolling.markdown

Pure CSS Parallax Scrolling

A prototype parallax scrolling technique that uses CSS 3D transforms. No JavaScript!

An article about this technique is available here: http://keithclark.co.uk/articles/pure-css-parallax-websites/

A newer version can be found here: http://codepen.io/keithclark/pen/vNqxQJ

A Pen by Simon Snow on CodePen.

License.

style.css

@import url(https://fonts.googleapis.com/css?family=Nunito);

html {
  height: 100%;
  overflow: hidden;
}

body { 
  margin:0;
  padding:0;
	perspective: 1px;
	transform-style: preserve-3d;
  height: 100%;
  overflow-y: scroll;
  overflow-x: hidden;
  font-family: Nunito;
}

h1 {
   font-size: 250%
}

p {
  font-size: 140%;
  line-height: 150%;
  color: #333;
}

.slide {
  position: relative;
  padding: 25vh 10%;
  min-height: 100vh;
  width: 100vw;
  box-sizing: border-box;
  box-shadow: 0 -1px 10px rgba(0, 0, 0, .7);
	transform-style: inherit;
}

img {
  position: absolute;
  top: 50%;
  left: 35%;
  width: 320px;
  height: 240px;
  transform: translateZ(.25px) scale(.75) translateX(-94%) translateY(-100%) rotate(2deg);
  padding: 10px;
  border-radius: 5px;
  background: rgba(240,230,220, .7);
  box-shadow: 0 0 8px rgba(0, 0, 0, .7);
}

img:last-of-type {
  transform: translateZ(.4px) scale(.6) translateX(-104%) translateY(-40%) rotate(-5deg);
}

.slide:before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left:0;
  right:0;
}

.title {
  width: 50%;
  padding: 5%;
  border-radius: 5px;
  background: rgba(240,230,220, .7);
  box-shadow: 0 0 8px rgba(0, 0, 0, .7);
}

.slide:nth-child(2n) .title {
  margin-left: 0;
  margin-right: auto;
}

.slide:nth-child(2n+1) .title {
  margin-left: auto;
  margin-right: 0;
}

.slide, .slide:before {
  background: 50% 50% / cover;  
}

.header {
  text-align: center;
  font-size: 175%;
  color: #fff;
  text-shadow: 0 2px 2px #000;
}

#title {
  background-image: url("http://lorempixel.com/640/480/abstract/6/");
   background-attachment: fixed;  
}

#slide1:before {
  background-image: url("http://lorempixel.com/640/480/abstract/4/");
  transform: translateZ(-1px) scale(2);
  z-index:-1;
}

#slide2 {
  background-image: url("http://lorempixel.com/640/480/abstract/3/");
  background-attachment: fixed;
}

#slide3:before {
  background-image: url("http://lorempixel.com/640/480/abstract/5/");
  transform: translateZ(-1px) scale(2);
  z-index:-1;
}

#slide4 {
  background: #222;
}