h1{
	color: whitesmoke;
	font-family: Arial;
}
h2{
	color: #718180;
	font-family: Arial;
	font-size: 12px;
}

.topnav {
	background-color: #004d4d;
	overflow: hidden;
	font-family: Arial;
}

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

.topnav a:hover, .dropdown:hover .dropbtn {
	background-color: #99ffff;
	color: whitesmoke;
}
           
body{
	background-color: black;
} 
.dropdown {
  float: left;
  overflow: hidden;
}

.dropdown .dropbtn {
  font-size: 16px;
  border: none;
  outline: none;
  color: #f2f2f2;
  padding: 14px 16px;
  background-color: inherit;
  font-family: inherit;
}

.dropdown-content {
	display: none;
	position: absolute;
	background-color: #004d4d;
	min-width: 160px;
	z-index: 1;
}

.dropdown-content a {
	float: none;
	color: #f2f2f2;
	padding: 12px 16px;
	text-decoration: none;
	display: block;
	text-align: left;
}

.dropdown-content a:hover {
 	background-color: #99ffff;
	color: whitesmoke;
}

.dropdown:hover .dropdown-content {
	display: block;
}
.center{
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
.button {
  border: 4px solid #1f7a7a; 
  padding: 25px 50px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  transition-duration: 0.4s;
  cursor: pointer;
  color: #cecece;
  border-radius: 10px;
  text-shadow: 2px 2px 4px #000000;
}

.button:hover{
border: 4px solid #99e6e6;
color: white;
}