body                                        {
                                                margin: 0px;
                                            }

header#stage                                {
                                                position: absolute;
                                                background-image: radial-gradient(
                                                    circle at center,
                                                    #212A67 20%,
                                                    #161749 60%,
                                                    #0B0D2E 100%
                                                );
                                                background-color: #0B0D2E;
                                                height: 100%;
                                                width: 100%;
                                            }

header#stage > *                            {
                                                position: absolute;
                                                height: 100%;
                                                width: 100%;
                                            }