.mask {
  width: 100%;
  height: 100%;
  overflow: scroll;
  background: rgba(0, 0, 0, 0.7);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
}

.mask-wrap {
  display: flex;
  flex-direction: column;
  height: 100%;
  align-items: center;
  justify-content: center;
}