/* Alpha artwork supplies the visible edges; the existing masks remain hit targets. */
.gallery .img-wrap > .zoom-region { opacity: 0; }
.gallery .img-wrap > .zoom-region:hover,
.gallery .img-wrap > .zoom-region.active { opacity: 1; }
/* A transparent closed-eye layer must replace, rather than cover, the open eye. */
#img-wrap-eye.active-o-eyelid > .base,
#img-wrap-eye.active-o-eyelid > .zoom-region { opacity: 0 !important; }