When developing Custom tools/Calculators etc. for AEM, please use the following informations and requirements
AEM Grid stylesheet:
https://www.grundfos.com/etc.clientlibs/settings/wcm/design/aembase/grid.min.css
Please note, that product-selection pages can NOT execute javascript at all
Example page: https://product-selection.grundfos.com/products/alpha?tab=explore
Make sure to test code in the following browsers both doing development and before final delivery:
Desktop:
Mobile/tablet: