The Size block sets width and height (and, for flex children, grow/shrink/basis). Use keywords like Hug (max-content) and Fill (stretch), plus optional min/max and a ratio lock.
Where: Right sidebar → Layout & Transform → Size — Select an element and open Size
Key ideas
- Units & keywords: px / % / rem / vh / vw, plus Hug (max-content), Fill (stretch), and Auto.
- Flex sizing: Grow / Shrink / Basis appear when the parent is a flex (Stack) container.
- Ratio lock: Lock width:height so editing one computes the other (hold Shift to override).
Steps
- Open Layout & Transform → Size.
- Set Width and Height (or pick Hug / Fill).
- Add min/max or aspect-ratio with “+” if needed.
- Toggle the ratio lock to keep proportions.