* {
  margin: 0px;
  padding: 0px ;
}

html, body { 
  font-family:Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  display: flex; 
  justify-content: center;
  flex-direction: column;
  height: 100%;
}
  
nav {
    background-color: #be2626; 
}


ul {
    display:flex;
    list-style: none;
    text-decoration: none;
} 
   
li {
    padding: 15px;
    text-decoration:none;
}

a {
    text-decoration: none;
    color: white;
    font-weight: bold;
}
#map {
  padding: 10px;
  height: 100%;
  width: 90%;
  margin: auto;
}
.train-item {
  padding: 10px;
  margin: 5px 0;
  border-left: 4px solid;
}

#diagram {
  width: 80%;
  height: auto;
  margin: auto;
  padding : 3%;
  border: 2px solid black;

}

h1, h2, h3 {
  text-align: center;
  margin: 20px 0;
}