  flex-direction: column;
  align-items: center;  
}

h1 {
  color: #232f3e;
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 0;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  max-width: 300px;  
  padding: 12px 20px;
  margin: 8px 0;
  box-sizing: border-box;
  border: 2px solid #ddd;
  border-radius: 4px;
}

input[type="submit"] {
  background-color: #303c49;
  border: none;
  color: white;
  padding: 14px 28px;
  text-align: center;
  text-decoration: none;
  display: inline-block