You can force the mobile view in a desktop browser by adding the mobile delivery channel to the end of the URL. This would only apply if you are building/testing a static mobile layout on your NetCommunity site.

The mobile delivery channel is:
?Deliverychannelid=3f6b7ea0-73e8-462b-a075-de89431816a4

For example: www.domain.org/donate?Deliverychannelid=3f6b7ea0-73e8-462b-a075-de89431816a4