/* PP 3D/AR Slide Defer — white backing for our embed iframes.
   WooThumbs' embed wrapper (.iconic-woothumbs-responsive-media) is black by
   design (video letterboxing). Our deferred 3D/AR slides start as a transparent
   about:blank iframe and take ~1–2s to swap in + paint the (white) model-viewer,
   so during that gap the black wrapper shows through => a black flash on load.
   Force a white background on OUR embed iframes only (matched by endpoint URL /
   deferred marker), so the gap is white. Real video embeds keep their black
   wrapper. See threed-ar-slide-defer.php / .js. */

iframe[data-ppsrc],
iframe[src*="/pp-3d-embed/"],
iframe[src*="/pp-ar-launch/"] {
	background-color: #fff;
}