.overlay {
  position: fixed;
  z-index: 1999;
  background: rgba(0, 0, 0, 0.5);
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.base {
  position: relative;
  background: #fff;
}

.closeButton {
  position: absolute;
  right: 20px;
  top: 5px;
  display: block;
  padding: 5px;
  border: 1px solid black;
  line-height: 1;
  cursor: pointer;
}

.content {
  padding: 40px;
  max-height: calc(100vh - 80px);
  max-width: calc(100vw - 80px);
  overflow-y: auto;
}