body {
	margin: 20px;
	font-family: Arial, Helvetica, sans-serif;
	font-size: 100%;
	font-weight: normal; color: #556B2F;
	background: #9a9aff;
}
.topnav {
  overflow: hidden;
  background-color: #818181;
}

.topnav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav a.active {
  background-color: #04AA6D;
  color: white;
}