Reduce image size on product page just on desktop version (Modular theme)

[NicolasMaverde]

@Kinjaldavra @diego_ezfy

Thanks to both of you.

Both codes work but not just for desktop version like I want it.

On mobile I don´t want a change. With your code it looks like this:

Can you edit the code so it just works for desktop.

Thanks in advance!

Nicolas