You can force edge to edge with CSS. Example as follows
Code:
.qtip.galleryModal {
width: 100% !important;
height: 100% !important;
}
That will still respect the max-width and max-height so it won't sit directly on the edge of the screen. If you want it to sit on the edge of the screen you can use the below to override the max sizes.
Code:
.qtip.galleryModal {
width: 100% !important;
height: 100% !important;
max-width: 100% !important;
max-height: 100% !important;
}
Don't really recommend doing this though.