body {
	font-family: Arial;
	margin: 0;
	background-color: white;
	text-align: left;
}


footer {
	background-color: navy blue;
	color: black;
	text-align: center;
	padding: 20px;
	text-align: center;
}

nav {
	text-align: center;
}

header {
	background-color: navy blue;
	text-align: center;
}

img {
	vertical-align: top;
}

nav a {
	display: inline-block;
	padding: 10px 20px;
	background-color: black;
	color: white;
	text-decoration: none;
	border-radius: 5px;
	margin-right: 10px
}

table,
th,
td {
	border: 1px solid black;
}

table,
th,
td {
	border: 1px solid black;
	border-collapse: collapse;
}

table {
	border-collapse: collapse;
	width: 100%;
}

th,
td {
	border: 1px solid black;
	padding: 8px;
	text-align: center;
}

th {
	background-color: #f2f2f2;
}

.hdr_img {
	display: block;
	margin: auto;
	width: 100%;
}

.mlf_img {
	width 100%
}

section {
	border: 2px solid black;
	width: 300px;
	width: 80%;
	margin: center;
}

.div_img {
	display: block;
	margin: auto;
	width: 100%;
}

.class_text {
	margin: 0;
	padding-left: 200px;
	padding-right: 200px;
}

.img_DT {
	text-align: center;
}