#lef-container {
  padding: 15px;
  border: 1px solid #ddd;
  border-radius: 6px;
  max-width: 400px;
}
#lef-profile {
  width: 100%;
  padding: 8px;
  margin-bottom: 10px;
}
#lef-btn {
  padding: 8px 12px;
  background: #2271b1;
  color: #fff;
  border: none;
  cursor: pointer;
}
#lef-result {
  margin-top: 10px;
  font-size: 14px;
}