menu{
  opacity: 0;
  transition: opacity 0.5s;
}

.opaque{ 
  opacity: 1;
}

.navbar {
  display: block;
  background-color: #333;
  width: 100vw;
  padding: 10px;
  left: 0;
  top:0;
  z-index: 999;
  position: fixed;
  
}

.navbar a {
  float: left;
  font-size: 20px;
  color: white;
  text-align: center;
  padding: 8px 16px;
  text-decoration: none;
  font-family: "BauhausStd-Light";
  
}

.navbar a:hover, .dropdown:hover .dropbtn {
  background-color: yellow;
  color: black;
}


@media screen and (max-width: 600px) {

  .navbar {
    display: block;
    background-color: #333;
    width: 100vw;
    padding: 0;
  }
  
  .navbar a {
    float: left;
    font-size: 6vw;
    color: white;
    text-align: center;
    padding: 5vw 7.5vw;
    text-decoration: none;
}