#planet-container {
    /* Don't set height: 500px; it leads to extra space below the globe
     * on phones where width < 500.
     */
    width: 500px;
    max-width: 99%;
    max-height: 99%;
}
#infobanner {
    position: absolute;
    top: 0; /* Example positioning */
    left: 0;
    width: 100%; /* Example dimensions */
    height: 100%;
    z-index: 99; /* Higher z-index to appear on top */
}