Loading…
Overflow is flagged three ways: ↕/↔ = content past the
slide edge (px and % of edge); ✂ cut = a clipping box
(code well, fixed card) hides content; ⊟ spill = a box's
content escapes its slot (a column/region taller than its space). The
element is named in each. Fit is a function of aspect ratio, so the
1:1 column is the gate: pass there and every more-portrait screen passes.
The portrait/phone columns exist to catch the few
non-vmin spots (vw/vh) and to confirm the square's verdict.
Click a red cell to open that slide in a popup sized to that exact
shape — the overflow reproduces live so you can see where it spills. Clicking
the slide name opens it at its first failing shape.