body, html {
    height: 100%;
    margin: 0;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f4f6f9;
}
.login-box {
    width: 360px;
    padding: 20px;
    background: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}
.login-logo img {
    display: block;
    margin: 0 auto;
}
.login-box-msg {
    margin-bottom: 20px;
    text-align: center;
    font-size: 18px;
    color: #333;
}