.shutter {
  overflow: hidden;
  width: 100%;
  height: 100%;
  position: relative;
}
.shutter-img {
  z-index: 1;
}
.shutter-img,
.shutter-img a {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
}
.shutter-img a {
  cursor: default;
}
.shutter-img a > img {
  width: 100%;
  height: 100%;
}
.shutter-img .created {
  overflow: hidden;
  position: absolute;
  z-index: 20;
}
.shutter-btn {}
.shutter-btn li {
  position: relative;
  margin-right:10px;
  z-index: 2;
  top: calc(100% - 20px);
  width: 3px;
  height: 3px;
  border-radius:1.5px;
  cursor: pointer;
}