html {
  font-size: 90%;
}

td.button-cell {
  cursor: pointer;
}

#overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: 2000;
  display: none
}