body {
  font-family: 'Poppins', sans-serif;
  margin-right: 10px;
  margin-left: 10px;
  padding: 0;
  background-color: #f4fdf4;
  color: #333;
  border: 20px;
}

header {
  background-color: #1e90ff;
  padding: 15px;
  color: white;
  text-align: center;
}

.container {
  max-width: 1200px; /* Or 1000px, 960px, etc. */
  margin: 0 auto;    /* This centers the container */
  padding: 20px;     /* Optional: add spacing inside */
}
nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

main {
  padding: 20px;
}

footer {
  background-color: #f0f0f0;
  text-align: center;
  padding: 10px;
  font-size: 14px;
  margin-top: 20px;
}