width_rel
Overview
Overwrites Element.width - if you want finer control over the final width, use Element.width_add or Element.min_width.
Values
Default value: nil
Valid values: nil, number between 0 and 1
If not nil, automatically adjusts element width based on parent.width as a decimal (the percentage / 100)
e.g: * 1 = 100% of the parent width * 0.5 means 50%
attributes