form {
  width: 500px;
  margin-left: 200px;
  display: block;
}

form label {
  text-align: right;
  margin-right: 20px;
  width: 100px;
  float: left;
}

form input {
  width: 300px;
  float: left;
}

form button {
  margin-left: 200px;
  width: 100px;
}

p.error {
  margin-left: 350px;
  color: #F00;
}