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

iframe {
    border: 0;
    width: 100%;
    height: 100%;
}

.ltly-cloak-html,
.ltly-cloak-body {
    margin: 0;
    height: 100%;
}

.ltly-cloak-frame {
    border: 0;
    width: 100%;
    height: 100%;
}