ul {
  list-style-type: none;
  margin: 2px;
  padding: 0;
  overflow: hidden;
  background-color: #333;
  border-radius: 25px;
  float: center;
}

li {
  float: left;
}

li a {
  display: block;
  color: white;
  text-align: center;
  padding: 15px 35px;
  text-decoration: none;
  font-size: 3.0vmin;
}
@media only screen and (max-width: 1000px) {
	li a {
		display: block;
		color: white;
		text-align: center;
		padding: 15px 35px;
		text-decoration: none;
	  font-size: 3.0vmax;
	}
}
.active li a {
  background-color: #04AA6D;
}