body {
  font-family: Arial, sans-serif;
  text-align: center;
  background-color: white;
}

h1 {
  color: black;
}

button {
  background-color: blue;
  color: white;
  border: none;
  padding: 10px 20px;
  font-size: 18px;
  cursor: pointer;
  margin-top: 20px;
  border-radius: 5px;
}

button:hover {
  background-color: darkblue;
}

table {
  margin: 30px auto;
  border-collapse: collapse;
  width: 300px;
}

th, td {
  border: 1px solid #333;
  padding: 10px;
  font-size: 16px;
}

th {
  background-color: #f2f2f2;
}