body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
  background-color: #f0f0f0;
}

textarea {
  width: 80%;
  height: 200px;
  margin-top: 10px;
  padding: 10px;
  font-size: 16px;
  line-height: 1.5;
}

.toolbar {
  display: flex;
  justify-content: center;
  margin-bottom: 10px;
}

button {
  margin-left: 5px;
  padding: 5px 10px;
}

label, input {
  margin-right: 10px;
}