header {
	background: url("/pics/header_background_plane.jpg");
	background-size: 100%;
}
section {
	text-align: center;
}
footer {
	text-align: center;
	color: grey;
}
table {
	width: 100%;
	border-collapse: collapse;
}
tr {
	width: 100%;
}
td {
	border: 1px solid black;
	padding: 12px;
}
input {
	width: 100%;
	border: none;
}
img {
	width: 100%;
}