org-theme/scss/partials/_nagivation.scss

#org-div-home-and-up {
    position: absolute;
    right: 0;
    z-index: 10;
    padding: 10px;

    // Large Screens
    @media all and (min-width: $content-max-width+$toc-width) {
        right: auto;
        width: $content-max-width+$toc-width;
        text-align: right;
    }
}