body {
  font-family: Arial, sans-serif;
  background-color: #f0f8ff;
  padding: 20px;
  text-align: center;
}
h1 {
  margin-bottom: 30px;
  font-size: 2em;
  color: #333;
}
table {
  margin: 0 auto;
  border-collapse: collapse;
  width: 90%;
}
th, td {
  border: 1px solid #999;
  padding: 12px;
  text-align: center;
}
tr:nth-child(even) {
  background-color: #e6f7ff;
}
tr:nth-child(odd) {
  background-color: #ffffff;
}
tr:hover {
  background-color: #cceeff;
  transition: background-color 0.3s ease;
}
th {
  background-color: #007acc;
  color: white;
}