root {
	height: 100%;
}
body {
	background: #000;
	color: #0A0;
	font-family: courier, monospace, sans-serif;
	height: 100%;
}
.layer {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0,0,0,0.5);
}
.inner {
	position: absolute;
	width: 24em;
	padding: 1em;
	margin-left: -12em;
	top: 2em;
	left: 50%;
	border: #0A0 solid 1px;
	background-color: #000;
	box-shadow: 0px 0 15px #0F0;
	text-align: center;
	font-weight: bold;
}
.inner button {
	font-size: 125%;
	margin: 1em 0;
	padding: 0.5em;
}
#options {
	padding: 1em;
}
select {
	background: #FFF;
	color: #040;
	font-family: courier, monospace, sans-serif;
	border: #050 solid 1px;
	border-radius: 2px;
}
option {
	border: none;
}
#main {
	height: 100%;
	text-align: center;
	vertical-align: middle;
	margin: auto;
	padding: 2em;
}
#binary {
	font-weight: bold;
	font-size: 125%;
	color: #FFF;
}
#wrong {
	font-weight: bold;
	font-size: 115%;
}