Garden Gnome Software

The problem I have is this: In the skin venis there is the Image Pup Up function. On a phone or tablet, unfortunately you only see the image, but not the text (image description). However, the description can be seen in the browser on the PC/Mac.
I added a textbox to the Image_Popup_phone, but I can't show the text from the hotspot image description.
My customized skin is in the attachment.
Hopefully, someone has a solution for my problem.
Thankx,
Ulrich