.duochong {
	font-size:48px;
	line-height:48px;
	font-weight:bold;
	margin-bottom:20px;
	text-align:center;
	text-shadow:
		0 0 2px #000,
		0 0 2px #aaa,
		0 0 4px #999,
		0 0 6px #888,
		0 0 8px #666,
		0 6px 6px rgba(0,0,0,0.5),
		0 8px 20px rgba(0,0,0,0.5);
}