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Clarify grid-auto-flow column placement tracks #44355

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Clarify grid-auto-flow column placement tracks #44355

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4 changes: 4 additions & 0 deletions files/en-us/web/css/reference/properties/grid-auto-flow/index.md
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Expand Up @@ -188,6 +188,10 @@ inputElem.addEventListener("change", changeGridAutoFlow);

{{EmbedLiveSample("Setting_grid_auto-placement", "200px", "260px")}}

In this example, `grid-template` defines four row tracks and two column tracks.
When `grid-auto-flow` is set to `column`, auto-placed items fill each column by filling the rows in turn, then add new columns as needed.
If your grid defines only column tracks, `column` auto-placement creates additional implicit columns instead of wrapping items into the existing columns, and those implicit columns are sized by [`grid-auto-columns`](/en-US/docs/Web/CSS/Reference/Properties/grid-auto-columns).

Comment on lines 189 to +194

@pepelsbey pepelsbey Jun 8, 2026

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{{EmbedLiveSample("Setting_grid_auto-placement", "200px", "260px")}}
In this example, `grid-template` defines four row tracks and two column tracks.
When `grid-auto-flow` is set to `column`, auto-placed items fill each column by filling the rows in turn, then add new columns as needed.
If your grid defines only column tracks, `column` auto-placement creates additional implicit columns instead of wrapping items into the existing columns, and those implicit columns are sized by [`grid-auto-columns`](/en-US/docs/Web/CSS/Reference/Properties/grid-auto-columns).
In this example, `grid-template` defines four row tracks and two column tracks.
When `grid-auto-flow` is set to `column`, auto-placed items fill each column top-to-bottom, then add new columns as needed.
If your grid defines only column tracks, `column` auto-placement creates additional implicit columns instead of wrapping items into the existing columns, and those implicit columns are sized by {{cssxref("grid-auto-columns")}}.
{{EmbedLiveSample("Setting_grid_auto-placement", "200px", "260px")}}

## Specifications

{{Specifications}}
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