body {
  max-width: 800px;
  margin: 50px auto;
  padding: 20px;
  font-family: monospace;
}

input, button {
  margin: 5px;
  padding: 8px;
  font-family: monospace;
}

#input {
  width: 400px;
}

#output {
  word-break: break-all;
  background: #f0f0f0;
  margin-top: 20px;
  padding: 10px;
}

.method {
  border: 1px solid #ccc;
  margin: 20px 0;
  padding: 15px;
}

h2 {
  margin-top: 0;
}