Need help with mobile image galleries

Hi, I am looking for help with a glitch that prevents images from within my image galleries from resizing appropriately when displayed on a mobile device and then rotated.

Here’s the site I’m referring to:

When users open an image from with the Residential or Commercial image galleries, the image is sized appropriately for their mobile device. If the device is rotated while the image is displayed, the image does not resize properly. I have primarily experienced this issue on iPhones.

If you can help with this issue, please provide an estimate of the cost to implement a fix.

Thank you!