dialog {
	background: white; margin: auto; padding: 1em; border: solid currentColor; border-image: none; left: 0px; right: 0px; color: black; display: none; position: absolute;
}
dialog[open] {
	display: block;
}
dialog + .backdrop {
	background: rgba(0, 0, 0, 0.1); left: 0px; top: 0px; right: 0px; bottom: 0px; position: fixed;
}
@media screen and (max-width:540px)
{
dialog[_polyfill_modal] {
	margin: 1em; top: 0px; width: auto;
}
}
._dialog_overlay {
	left: 0px; top: 0px; right: 0px; bottom: 0px; position: fixed;
}
dialog.fixed {
	top: 50%; position: fixed; transform: translate(0px, -50%);
}