Try everything, cannot set a fixed sized in the <a href> code???

[Chacapamac]

I read and try everything on you documentation and I cannot include a fixed size directly in the code???

I try : data-lc-options='{"maxWidth": "440", "maxHeight": "550"}' I try : data-lc-options='{"width": "440", "height": "550"}'

and play with many setting in the lightcase.js

Hours passed without being able to set this simple feature correctly....