html {
        color: white;
}

body {
	text-align: center;
}

img.bg {
        /* Set rules to fill background */
        min-height: 100%;
        min-width: 1024px;

        /* Set up proportionate scaling */
        width: 100%;
        height: auto;

        /* Set up positioning */
        position: fixed;
        top: 0;
        left: 0;
}

@media screen and (max-width: 1024px) { /* Specific to this particular image */
        img.bg {
                left: 50%;
                margin-left: -512px;   /* 50% */
        }
}