body {
  font-family: sans-serif;
  background: #f6f6f6;
  padding: 20px;
}
.container {
  max-width: 600px;
  margin: auto;
  background: white;
  padding: 20px;
  border-radius: 10px;
}
textarea {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
}
button {
  margin-top: 10px;
  padding: 10px 20px;
  cursor: pointer;
}
img {
  margin-top: 20px;
  width: 100%;
  border-radius: 10px;
}