How to make content in lightbox popups scalable?

LJD Community Member, Lectora® Accessibility Group (LAUG) Member, eLearning Brothers® Partner Posts: 1 ☆ Roadie ☆
When I publish a project to HTML to main pages are scalable to full screen size of my monitor but the lightbox popup pages are not, which makes the content in them look tiny when displayed on a large monitor. Any work arounds for this?