dialog {
  border: solid 3px #007BC3;
  border-radius: 8px;
  background-color: #FFFFFF;
  text-align: left;
  box-shadow: 4px 4px 10px #111111;
  margin-top: 10em;
}

dialog::backdrop {
  background-color: #000000;
  opacity: 0.8;
}