Quelle: https://www.jacklmoore.com/colorbox/
Test 1
iframe-Popup in Lightbox
Test 1a
iframe-Popup in Lightbox GoogleDrive PDF-preview (https://drive.google.com/file/d/169czSG--YXON5oXGNZTzDI6jDInK5AzJ/preview)
Test 2
iframe-PopUp (Lightbox-Popup)
Test 3
DHL Versandschein (pdf-Popup)
Skripte
init colorbox-PopUp
create trigger-Image