form#contact-site-form {
  max-width: 33em;
  margin: 0 auto;
  padding: 1em 2em;
  border: 1px solid #eee;
  background-color: #fdfdfd;
}
form#contact-site-form label {
  font-weight: normal;
  font-size: 0.9em
}

form#contact-site-form label .form-required {
  color: red;
}