.wrap {
  margin-top: 100px;	
  width: 100%;
  height: 600px;
  -webkit-perspective: 800px;
  -moz-perspective: 800px;
}

.photo {
  width: 260px;
  height: 320px;
  position: absolute;
  z-index: 1;
  box-shadow: 0 0 1px rgba(0,0,0,.01);
  -webkit-transition: all 0.6s;
  -moz-transition: all 0.6s;
  left: 50%;
  top: 50%;
  margin: -160px 0 0 -130px;
}

.photo .side {
  width: 100%;
  background-color: #eee;
  position: absolute;
  top: 0;
  right: 0;
  box-sizing: border-box;
}

.photo .side-front { /*display: none;*/
}

.photo .side-front .image {
  width: 100%;
  overflow: hidden;
  margin-bottom: 0;
}

.photo .side-front .image img { width: 100%; }

.photo .side-front .caption {
  text-align: center;
  font-size: 10px;
  padding-top: 15px;
}

.photo .side-back { }

.photo .side-back .desc {
  color: #666;
  font-size: 14px;
  line-height: 1.5em;
}

.photo_center {
  left: 50%;
  top: 50%;
  margin: -160px 0 0 -130px;
  z-index: 999;
}

.photo-wrap {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-transform-style: preserve-3d;
  -webkit-transition: all 0.6s;
  -moz-transform-style: preserve-3d;
  -moz-transition: all 0.6s;
}

.photo-wrap .side-front {
  -webkit-transform: rotateY(0deg);
  -moz-transform: rotateY(0deg);
}

.photo-wrap .side-back {
  -webkit-transform: rotateY(180deg);
  -moz-transform: rotateY(180deg);
}

.photo-wrap .side {
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
}

.photo_front .photo-wrap {
  -webkit-transform: rotateY(0deg);
  -moz-transform: rotateY(0deg);
}

.photo_back .photo-wrap {
  -webkit-transform: rotateY(180deg);
  -moz-transform: rotateY(180deg);
}
.photo_center { cursor: pointer; }
.nav2 {
  width: 80%;
  height: 30px;
  line-height: 30px;
  position: absolute;
  left: 10%;
  bottom: 20px;
  z-index: 999;
  text-align: center;
}

.nav2 .i {
    width: 30px;
    height: 30px;
    display: inline-block;
    cursor: pointer;
    background-color: #efe7e7;
    text-align: center;
    border-radius: 90%;
    -webkit-transform: scale(0.5);
    -webkit-transition: all 0.5s;
    -moz-transform: scale(0.5);
    -moz-transition: all 0.5s;
    border: 4px solid #f05f40;
}

.nav2 .i_current {
  -webkit-transform: scale(0.8);
  -moz-transform: scale(0.8);
}

.nav2 .i_back {
  -webkit-transform: rotateY(-180deg) scale(0.8);
  -moz-transform: rotateY(-180deg) scale(0.8);
  background-color: #555;
}