body>header {
	background-image: linear-gradient(30deg, rgba(0,0,0,0.8) 33%, rgba(255,0,0,0.8) 33%, rgba(255,0,0,0.8) 66%, rgba(255,255,0,0.8) 66%), linear-gradient(rgba(0,0,0,0.1), rgba(0,0,0,1));
	color : white;
}


// Farbverläufe übereinander müssen alle mit rgba definiert werden...
body>footer {
	background-image: linear-gradient(30deg, rgba(0,0,0,0.8), rgba(255,0,0,0.8), rgba(255,255,0,0.8)), linear-gradient(rgba(0,0,0,0.1), rgba(0,0,0,1));
	color : white;
}


tr:nth-child(even) td:nth-child(even)



table {
	border-collapse: collapse;
	font: bold 12px "Bahnschrift Bold", Verdana, 'Lucida Grande';
	text-align: center;
}

table td {
	width: 30px;
	height: 30px;
	border: 1px solid black;
}

tr:nth-child(odd) td:nth-child(odd),
tr:nth-child(even) td:nth-child(even) {
	background-color: black;
}