td { border: 1px solid black; }
.right { background-color: #bfb; }
.wrong { background-color: #eeb8b8; }
.main {
	border-radius: 5px;
	border-color: grey;
	border-width: 2px;
	border-style: solid;
	text-align: center;
	margin-top: 15px;
	margin-left: -204px;
	padding: 10px;
	display: inline-block;
	left: 50%;
	position: relative;
	width: 408px;
}
.main h2 { text-align: left; }
.main p { text-align: left; }