body {
  background-color: #3498db;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
#form-container {
  background-color: white;
  padding: 60px;
  text-align: center;
}
h2 {
  margin: 0px 0px 20px 0px;
}
input {
  width: 230px;
  margin: 15px 0px;
  padding: 10px;
}
input[type="submit"] {
  width: 228px;
  height: 40px;
  background-color: #3498db;
  color: white;
  border: 0px;
}
.error {
  color: red;
  margin: 0px;
  text-align: left;
}