.container {
  padding-bottom: 10px;
}

/* Main Menu */
nav {
  text-align: left;
  width: 100%;
  margin: 0 auto;
}
nav ul {
  font-family: sans-serif;
  font-weight: bold;
  text-decoration: none;
  text-transform: uppercase;
  display: block;
  list-style: none;
  margin: 0;
  padding: 0;
}
nav ul li.active {
  background-color: #488;
}

/* Sub Menu */
nav ul li ul {
  background-color: rgba(102, 255, 255, .95); /*-- turquoise --*/
  display: none;
}
nav ul li a {
  white-space: nowrap;
  color: #033;
  display: block;
  padding: 10px 15px;
}
nav ul li a:hover {
  color: #f66;
}
nav a:visited {
  color: #077;
}
nav ul li ul li a {
  padding-left: 40px;
  color: #011;
}
nav ul li.active ul {
  display: block;
}
nav ul li.active a {
  color: #6ff;
}
@media only screen and (min-width: 591px) {
  nav {
    background-color: rgba(102, 255, 255, .7); /*-- turquoise --*/
  }
  nav ul li {
    display: inline-block;
    position: relative;
  }
  nav ul li ul {
    position: absolute;
    left: 40px;
  }
  nav ul li ul li {
    display: block;
  }
}

#hamburger {
  display: none;
}
@media only screen and (max-width: 590px) {
  .container {
    max-width: 100%;
    margin: 0 auto;
  }
  nav {
    text-align: center;
  }
  nav ul {
    display: none;
  }
  nav ul li {
    background-color: rgba(102, 255, 255, .7);
  }
  #hamburger {
    display: block;
    margin: 10px;
  }
}