body {
  font-family: Arial, sans-serif;
  background: #f9f9f9;
  margin: 0;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 20px;
}

textarea {
  width: 100%;
  height: 250px;
  padding: 10px;
  font-size: 16px;
}

.buttons {
  margin-top: 10px;
}

button {
  padding: 8px 15px;
  margin-right: 5px;
  cursor: pointer;
}

main {
  max-width: 900px;
  margin: auto;
  background: #fff;
  padding: 20px;
}