body {
  font-family: Arial, sans-serif;
  background-color: #f7f7f7;
  margin: 0;
  padding: 0;
  color: #333;
}
header {
  background-color: #0066cc;
  color: white;
  padding: 20px;
  text-align: center;
}
main { padding: 20px; }
.item {
  background-color: white;
  border: 1px solid #ddd;
  margin-bottom: 15px;
  padding: 15px;
  border-radius: 8px;
  box-shadow: 2px 2px 5px rgba(0,0,0,0.1);
}
footer {
  background-color: #0066cc;
  color: white;
  text-align: center;
  padding: 10px;
  position: fixed;
  bottom: 0;
  width: 100%;
}