Required styles
Import @tailng-ui/flow/styles.css once so the underlying graph, ports, connections, drag previews, palette items, and execution presentation render correctly.
Layout sizing
Set the host height with --tng-flow-workbench-height or regular CSS. The palette, graph, and details panels use fixed minimum sizes so controls and canvas interactions do not collapse in narrow containers.
Panels
The palette uses --tng-flow-workbench-palette-width; details sizing is controlled by rightDetailsSize, bottomDetailsSize, and detailsPosition. In auto mode, details move below the graph when the container is narrow.