Description of the issue: On mobile screen, the EN petition form image does
not resizes properly

Page: https://www.greenpeace.org/luxembourg/fr/agir/petition-stop-nucleaire/

Screenshot https://drive.google.com/open?id=1txektSgHPPgRZG2k8uqmZhkL213gGCmh

Another example is the oceans declaration campaign: https://www.greenpeace.org/international/campaign/ocean-declaration

Tasks

• Fix for the EN form in all templates/