You have pixel widths defined for the styles of this element. Therefore, it won't be responsive.

If you inspect the source of this iframe (right click and choose "Inspect Element"), you'll find that the <ul> element containing the images is getting a style="width: 4778px;" applied to it. Each <li> child is also getting an explicit pixel width style applied. When I view the source of the iframe, these style tags are not present there.

That tells me you've got some javascript function which is setting this width. Looking at your source, I'm guessing the plugin responsible is galleria, but it's hard to tell.






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