#lottery {
	width: 570px;
	height: 510px;
	margin: 0px auto;
	border: 4px solid #ba1809;
}
#lottery table {
	background-color: yellow;
}
#lottery table td {
	position: relative;
	width: 190px;
	height: 170px;
	text-align: center;
	color: #333;
	font-index: -999
}
#lottery table td img {
	display: block;
	width: 190px;
	height: 170px;
}
#lottery table td.active .mask {
	display: block;
}
.mask {
	width: 100%;
	height: 100%;
	position: absolute;
	left: 0;
	top: 0;
	background-color: rgba(252, 211, 4, 0.5);
	display: none;
}