body {
	background-color: lightgreen;
}
#head1 {
	text-align: center;
}
#head2 {
	text-align: center;
}
.menu {
	font-size: 20px;
	color: black;
	background-color: green;
}
.dropdown {
	position: relative;
	display: inline-block;
	opacity: 0.5;
}
.dropdown-content {
	display: none;
	position: absolute;
	min-width: 160px;
	z-index: 1;
}
.dropdown-content a {
  	text-decoration: none;
 	display: block;
 	background-color: green;
	font-size: 20px;
}
.dropdown:hover .dropdown-content {
	display: block;
}
.dropdown:hover .menu {
	border-radius: 5px 5px 0px 0px;
}
#bottomlink {
	border-radius: 0px 0px 5px 5px;
}