body {
  font-family: Arial, sans-serif;
  background: #f8f8f8;
  margin: 0;
  padding: 0;
  text-align: center;
}
main {
  padding: 20px;
}
input, select {
  padding: 8px;
  margin: 8px;
}
button {
  padding: 10px 20px;
  background-color: #00bfa5;
  color: white;
  border: none;
  cursor: pointer;
}