.slideshow .wrapper {
  overflow: hidden;
  position: relative;
  width: 80%;
  margin:0 auto; }

.slideshow .wrapper.calculating {
  height: 0; }

.slideshow .slides {
  position: relative;
  z-index: 0; }

.slideshow .slide {
  position: relative;
  float: left;
  box-sizing: border-box; }