.separator {
  margin-top: 40px;
}

/* __________ */

.wraper-cube {
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 360px;
  padding: 20px 20px;
}

.radio {
  margin: 0.5rem;
}

.radio input[type="radio"] {
  position: absolute;
  opacity: 0;
}

.radio input[type="radio"] + .radio-label:before {
  content: "";
  background: white;
  border-radius: 100%;
  display: inline-block;
  width: 1em;
  height: 1em;
  position: relative;
  top: 0.3em;
  left: 1.7em;
  margin-right: 1em;
  vertical-align: top;
  cursor: pointer;
  transition: all 0.5s ease;
  box-shadow: 0.3rem 0.3rem 0.6rem #c8d0e7, -0.2rem -0.2rem 0.5rem white;
}

.radio input[type="radio"]:checked + .radio-label:before {
  background-color: white;
  box-shadow: inset 0.2rem 0.2rem 0.5rem #c8d0e7,
    inset -0.2rem -0.2rem 0.5rem white;
}

/* 3D Cube */

.space3d {
  perspective: 1000px;
  width: 250px;
  height: 250px;
  text-align: center;
  display: inline-block;
}

._3dbox {
  display: inline-block;
  transition: all 0.85s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-align: center;
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transform: rotateX(-15deg) rotateY(15deg);
}

._3dface {
  overflow: hidden;
  position: absolute;
  border: 1px solid #888;
  background: #fff;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.1), 0 0 8px rgba(0, 0, 0, 0.3);
  color: #333;
  line-height: 250px;
  opacity: 1;
}

._3dface--front {
  width: 250px;
  height: 250px;
  transform: translate3d(0, 0, 125px);
}

._3dface--top {
  width: 250px;
  height: 250px;
  transform: rotateX(90deg) translate3d(0, 0, 125px);
}

._3dface--bottom {
  width: 250px;
  height: 250px;
  transform: rotateX(-90deg) translate3d(0, 0, 125px);
}

._3dface--left {
  width: 250px;
  height: 250px;
  left: 50%;
  margin-left: -125px;
  transform: rotateY(-90deg) translate3d(0, 0, 125px);
}

._3dface--right {
  width: 250px;
  height: 250px;
  left: 50%;
  margin-left: -125px;
  transform: rotateY(90deg) translate3d(0, 0, 125px);
}

._3dface--back {
  width: 250px;
  height: 250px;
  transform: rotateY(180deg) translate3d(0, 0, 125px);
}

#radio-left:checked ~ .space3d ._3dbox {
  transform: rotateY(90deg);
}

#radio-right:checked ~ .space3d ._3dbox {
  transform: rotateY(-90deg);
}

#radio-bottom:checked ~ .space3d ._3dbox {
  transform: rotateX(90deg);
}

#radio-top:checked ~ .space3d ._3dbox {
  transform: rotateX(-90deg);
}

#radio-back:checked ~ .space3d ._3dbox {
  transform: rotateY(180deg);
}

._3dface--front {
  background: url(../img/foto/1.JPG);
  background-size: 100%;
}

._3dface--left {
  background: url(../img/foto/2.jpg);
  background-size: auto 100%;
}

._3dface--right {
  background: url(../img/foto/3.jpg);
  background-size: auto 100%;
}

._3dface--top {
  background: url(../img/foto/4.jpg);
  background-size: auto 100%;
}

._3dface--bottom {
  background: url(../img/foto/5.jpg);
  background-size: auto 100%;
}

._3dface--back {
  background: url(../img/foto/6.jpg);
  background-size: auto 100%;
}