body {
  font-family: Arial, sans-serif;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

#board {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.post {
  border: 1px solid #ccc;
  padding: 10px;
}

.post img {
  max-width: 100%;
  height: auto;
}