html, body, section {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

article.decker section {
  position: absolute;

  padding: 5%;
  width: 90%;
  height: 90%;

  top: 0;
  left: 0;

  -webkit-transform: translateX(100%) translateZ(0px);
  transform: translateX(100%) translateZ(0px);

  -webkit-transition: all ease-in-out 0.5s;
  transition: all ease-in-out 0.5s;
}

article.decker section.decker-active {
  -webkit-transform: translateX(0px) translateZ(0px);
  transform: translateX(0px) translateZ(0px);
}

article.decker section.decker-past {
  -webkit-transform: translateX(-100%) translateZ(0px);
  transform: translateX(-100%) translateZ(0px);
}