body {
  background-image: url('/main_page_images/background_img.jpg');
  color: black;
  font-family: Verdana;
}

.container {

  max-width: 900px; 


  margin-left: auto;
  margin-right: auto;
  
  background-color: lightgrey;

}

.header_img {
  width: 100%;
}


.retro-header {
  
  background-color: #6a5a73; 
  padding: 10px 0; 
}

.retro-nav ul {
  background-color: #6a5a73; 
  
  padding: 10px 0; 
  
  list-style: none; 
  padding: 10;
  margin: 0;
  display: flex; 
  justify-content: center; 
  gap: 20px; 
}

.retro-nav