.login {
    background: #0069d9;
    position: fixed;
    left: 0px;
    right: 0px;
    top: 0px;
    bottom: 0px;
}

.login-box {
    width: 400px;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}