html, body {
	margin: 0;
	padding: 0;
	}
	* {
	box-sizing: border-box;
	}
table {
	border-collapse: collapse;
	}
table, td, th {
	border: 1px solid black;
	}
div.container {
	width: 100%;
	font-family: Arial;
	}
header, footer {
	background-image: url("back.png");
	background-repeat: repeat;
	}
footer p {
	text-align: center;
	
	}