main dialog.level-selection menu
{
	flex-flow: column nowrap;
	align-items: stretch;
}

main dialog.level-selection menu > li
{
	padding: 0.5em;
	border: 0.1em solid lightgray;
  margin: 0.3em;
  box-shadow: 0.2em 0.2em lightgray;
  border-radius: 0.5em;
	display: flex;
	flex-flow: row nowrap;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	user-select: none;
}

main dialog.level-selection menu > li.selected
{
	border-color: blue;
}