.wrap {
  display: inline-block;
}

.pinchContainer {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pinchTop,
.pinchBottom {
  flex: 1;
}

.pinchMiddle {
  flex: 3;
}

.pinchImg {
  width: 100%;
  height: 100%;
}

.thumb {
  display: block;
}