.opd-navigation-frame {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
    visibility: hidden;
}

html[data-opd-shell],
html[data-opd-shell] body {
    margin: 0;
    overflow: hidden;
}

html[data-opd-shell] .opd-navigation-frame {
    visibility: visible;
}