body {
  font-family: sans-serif;
  padding: 20px;
  max-width: 600px;
}

label {
  display: block;
  margin-top: 10px;
}

input, select {
  width: 100%;
  padding: 6px;
  margin-top: 4px;
}

.result {
  margin-top: 20px;
  padding: 10px;
  background: #f9f9f9;
  border: 1px solid #ccc;
  white-space: pre-wrap;
}