nav {
	text-align: center;
	font-family: sans-serif;
	font-size: 20px;
}
h1 {
	font-family: arial;
	font-size: 50px;
	text-align: center;
}
nav {
	border-style: solid;
	border-color: green;
	border-width: 5px;
	padding: 10px;
	background-color: lightgreen;
}
img {
	float: right;
	border-style: solid;
	border-color: yellow;
	border-width: 5px;
}
body {
	background-color: lightyellow;
}
table {
	border-style: solid;
	border-color: yellow;
	border-width: 5px;
}
th {
	border-style: solid;
	border-color: yellow;
	border-width: 5px;
}
td {
	border-style: solid;
	border-color: yellow;
	border-width: 5px;
}