.md-header-nav {
  background-color: #4CAF50 !important; 
}


.md-header-nav__link {
  color: #FFFFFF; 
}


.md-header-nav__link:hover {
  color: #FFD700; 
}


.md-header-nav__toggle {
  background-color: #4CAF50; 
}


.md-header-nav__logo img {
  max-height: 40px; 
}