.container {
    width: 300px;
    margin: 0 auto;
    margin-top: 100px;
    text-align: center;
}

h1 {
    color: #333;
}

form {
    margin-top: 20px;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
}

button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
}

.error {
    color: red;
    margin-top: 10px;
}