Callouts by default will have their float property unset on mobile, and will stretch to 100% width.
adding |fixed callout metadata will force a callout to maintain its float on mobile, for exceptional situations where it is important to float a (preferably small) element even with limited screen space (i.e., mobile).
floatproperty unset on mobile, and will stretch to 100% width.|fixedcallout metadata will force a callout to maintain its float on mobile, for exceptional situations where it is important to float a (preferably small) element even with limited screen space (i.e., mobile).Closes #88 and #85