footer {
  background-color: #777;
  padding: 10px;
  text-align: center;
  color: white;
}
.header {
  background-color: #777;
  padding: 10px;
  text-align: center;
  color: white;
}

.col1 {
	float: left;
	width: 31%;
	padding: 10px;
	background-color: #aaa;
}
.col2 {
	float: left;
	width: auto;
	padding: 10px;
	background-color: #abc;
	border-spacing: 5px;
}
.col3 {
	float: left;
	width: 20%;
	padding: 10px;
	background-color: #bac;
}
.row:after {
	content: "";
	display: table;
	clear: both;
}
ul {
	list-style-type: none;
	margin: 0;
	padding: 0;
	overflow: hidden;
	background-color: #333;
}
li { float: left; }
li a {
	display: block;
	color: white;
	text-align: center;
	padding: 14px 16px;
}
h2 {
	text-align: center;
}
li a:hover {
	background-color: #111;
	color: #555;
}