.bu-contact-form {
  max-width: 600px;
  margin: 20px auto;
}
.bu-contact-form input,
.bu-contact-form textarea {
  width: 100%;
  margin-bottom: 10px;
  padding: 8px;
}
.bu-success {
  background: #d4edda;
  padding: 10px;
  margin-top: 10px;
  border-left: 5px solid #28a745;
}