I'm trying to set the width of some columns from the css. Is this not possible or does it require different syntax than normal css? I've tried column-width: 30px and width: 30px but neither seems to have an effect.
I have investigated on this.
In Vuforia Studio, in Grid Widget, in Column property panel, we can see the Fixed Column Size field.
In Preview, when running, in Developer Tools, we can see that these CSS settings are used to manage the size linked to this field :
I would recommand to use these Properties in CSS style sheet.
P.S: Edited to include a missing screenshot
Yes, that does help, but did you forget to include a screenshot for the developer tools? It looks like something is missing.