www.wysiwygwebbuilder.com

I have put an "open setting streetmap" in the center of a page that displayed in a lightbox. All works well in the default setting for a desktop/laptop. The light box is centered in the page, the entire map is displayed. I have altered the page for a 768 breakpoint, and have decreased the size of the page, altered the width and height in the lightbox settings, etc. But when I bring up the light box page on my phone, (720x1600 px) only about a quarter of the lightbox shows--that is the the upper left quarter of the page is displayed.

Recognize these symptoms? Any suggestions? I've put a demo up at

ancodptest.kesug.com/Demo/Untitled2.wbs and you can test the result of phone sized screen vs. desktop/laptop at
ancodptest.kesug.com/Demo



Ptlycldy

Is the lightbox you are using actually responsive? Some of them are not.

Don't know what Lightbox is being used. It is the one that the "Button" properties or setup thing uses under "Target Window or Frame" section. I am using WYSIWYG v18.

I would have left the lightbox page alone. Most lightboxes are responsive and will adjust to smaller screens. What happens if you turn phone to horizontal. Have you got CCS to deal with that?

WWB18 supports many different lightboxes. Each (third party) lightbox has different behavior. The one you are currently using is magnific-popup.
You can select a different lightbox in the page properties.
https://www.wysiwygwebbuilder.com/lightboxes.html