body {
	font-family: Georgia, "Times New Roman", Times, serif
}

h1, h2, h3 {
	font-family: "Arial Black", Gadget, sans-serif ;
	font-weight: bold ;
}

.outbox {
	font-family: "Arial Black", Gadget, sans-serif ;
	font-weight: bold ;
	font-size: large ;
	color: black ;
	border:thick solid black ;
}

.popup {
	position: fixed ;
	top: 0 ;
	left: 50px ;
	right: 50px ;
	overflow: hidden ;
	max-height: 10000px ;
	transition:visibility 0s linear 0.5s,opacity 0.5s linear;
	webkit-transition:visibility 0s linear 0.5s,opacity 0.5s linear;
}

.popup.hidden {
	visibility: hidden ;
	opacity: 0 ;
	webkit-transition-delay: 0s; /* Should affect only visibility. */
}

.popup.showing {
	visibility: visible ;
	z-index: 3 ;
	opacity: 1 ;
}

button:disabled {
	text-decoration: line-through ;
}