.image-converter-form {
  max-width: 500px;
  margin: 30px auto;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 8px;
  background: #212121;
  font-family: sans-serif;
}

.image-converter-form label {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
}

.image-converter-form input[type="file"],
.image-converter-form select {
  width: 100%;
  padding: 8px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.image-converter-form button {
  background-color: #0073aa;
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 4px;
  cursor: pointer;
}

.image-converter-form button:hover {
  background-color: #005f8d;
}

.image-converter-form select {
  width: 100%;
  padding: 8px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
  background-color: #fff;
  color: #000;
  font-size: 14px;
}