body {
   margin: 0;
   font-family: Arial;
}

.header {
   background-color: #333;
   color: white;
   padding: 20px;
   text-align: center;
}

.menu {
   background-color: #555;
   padding: 10px;
   text-align: center;
}

.menu a {
   color: white;
   margin: 10px;
   text-decoration: none;
}

.content {
   padding: 20px;
}

.footer {
   background-color: #333;
   color: white;
   text-align: center;
   padding: 10px;
}

.content {
   max-width: 800px;
   margin: auto;
}