Steps to Reproduce

run the attachment grid-flex-width.zul

Current Result

after initial page loading there is an unnecessary border to the right of the div/grid

Expected Result

no unnecessary margin

Debug Info

triggering a resize (e.g. browser resize) fills the gap

the code example contains several lines that - when uncommented - avoid the problem
e.g. using less rows in the model (could be screen resolution dependent - tested with 1080p)

Root Cause

Workaround