All good! Whether I'm a fool, or skis do not roll. I can not figure out how to increase the size of the thumbnail in the fancybox installed on the Bitrix site. If I climb into the CSS code, changing the width / height, then the proportions collapse.

Where exactly can this parameter be changed?

    1 answer 1

    In the documentation for fancybox looked into?

    enter image description here

    Look again, maybe in the admin site there is a re-sizing.