html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}

body {
    background-color: black;
    background-image: url("https://cytrix.dev/bg2.jpg");
    background-size: cover;       /* Make image cover full screen */
    background-position: center;  /* Center the image */
    background-repeat: no-repeat; /* Avoid tiling */
}