body {
  font-family: sans-serif;
  text-align: center;
  margin-top: 50px;
}
input, button {
  margin: 10px;
  padding: 10px;
  font-size: 16px;
}
table {
  margin: auto;
  margin-top: 20px;
  border-collapse: collapse;
}
th, td {
  padding: 10px;
}