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m-ex-cel

A single-file dmax example with semantic table markup, nested semantic CSS, and a spreadsheet-like live grid.

The style drawer is now dogfooded through dm-style.js: one shared helper, one shared panel, normal page-owned data-m-ex state.

Live stream controls

GitHub Pages cannot host the backend stream here, so this page installs a tiny in-page mock text/event-stream endpoint. The button still exercises dmax's real SSE action path.

Status
Feed open
Updates
Selected
Value
Last delta
Mode

The stream closed cleanly.

Stream error:

Spreadsheet-like planning grid

Click a cell to inspect it while the mock stream patches values over time.
Metric

Derived rows

These are computed from the live rows to show spreadsheet-like dependent updates.

Stream details

Recent events

Latest SSE frame


          
Latest parsed patch