body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: #f4f4f4;
}

.container {
  text-align: center;
  width: 80%;
  max-width: 800px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  padding: 12px;
  text-align: left;
  border: 1px solid #ddd;
}

th {
  background-color: #4CAF50;
  color: white;
}

tr:nth-child(even) {
  background-color: #f2f2f2;
}