body {
   margin: 0;
   font-family: Arial;
   text-align: center;
}

nav {
   background-color: lightpink;
   text-align: center;
   padding: 10px;
}

nav a {
   color: white;
   margin: 15px;
   font-weight: bold;
}

main {
   padding: 20px;
}

section {
   margin-bottom: 40px;
}

img {
   width: 100%;
   height: auto;
}