.mask-atom.theme-default {
  position: fixed;
  z-index: 9999;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background-color: rgba(0, 0, 0, .5);
  padding: 15px;
  overflow-x: hidden;
  overflow-y: auto;
}

.mask-atom.theme-default .mask-atom-centered {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}