label {
  display: block;
  margin-top: 20px;
  letter-spacing: 1px;
}

.principal {
  display: block;
  margin: 0 auto;
  width: 510px;
  color: #666666;
  font-family: Arial;
}

form {
  margin: 0 auto;
  width: 100%;
  padding: 20px;

}

input,
textarea {
  width: 100%;
  height: 35px;
  border: 2px solid #f6f6f6;
  padding: 10px;
  margin-top: 5px;
  font-size: 13px;
  border-radius: 25px;
}

#submit {
  background-color: #ea7a2f;
  border-radius: 25px;
  color: white;
  font-size: 16px;
}

textarea {
  height: auto;
}

#submit {
  width: 85px;
  height: 35px;
  border: none;
  margin-top: 20px;
  cursor: pointer;
}