dialog {
    position:fixed;
    border: none !important;
    border-radius: 10px;
    box-shadow: 0 0 #0000, 0 0 #0000, 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    padding: 1.6rem;
    max-width: 600px;
    top:0;
    bottom:0;
    z-index:99;
}
::backdrop {
  background:#ccc;
  opacity: 0.75;
}
dialog h2{
    margin-top:0;
    padding-top:0;
}
dialog:not([open]) {
  display: none;
}