`Grid`¶

Lay out explicit child components in a responsive grid.


Import	`from hedron import Grid`
Distribution	`hedron`
Backend activity	No
Normal render mode	`RenderMode.FRAGMENT`

Live demo¶

Latency184 ms↓ 12%Errors0.08%↓ 4%Traffic28.4k↑ 9%

The preview is a local docs simulation (not a running Hedron server). Interactive demos show a “Simulated HTMX” trace when applicable.

Basic use¶

from hedron import Card, Grid, Text

component = Grid(Card(Text('Latency')), Card(Text('Errors')), Card(Text('Traffic')), columns=3)

Compose under Page for full documents, or return from a fragment route for HTMX swaps.

How it works¶

Grid is declarative composition: it returns one component, not mutable positional column handles. The theme reads column and gap data attributes and may collapse columns responsively.

This component's core behavior is server-rendered HTML and does not require a browser runtime. The preview is ordinary semantic HTML, so keyboard, form, link, and disclosure behavior comes from the platform.

Constructor and parameters¶

Grid(*nodes, children=None, columns=2, gap='1rem', id=None, class_=None)

Parameter	Type	Meaning
`nodes`	`NodeLike`	Positional grid cells in reading order.
`children`	`NodeLike \| sequence \| None`	Keyword child list; combines with positional nodes.
`columns`	`int`	Requested column count; must be at least one.
`gap`	`CSS length`	Validated row and column gap.
`id`	`str \| None`	Stable DOM target for the grid region.
`class_`	`str \| None`	Optional class appended to `hedron-grid`.

Composition and backend behavior¶

Keep Grid at the smallest semantic boundary. Fragment routes should return only the replaced region and preserve stable target IDs across success, validation, empty, loading, and error responses.

This component is primarily presentational; keep any mutation on an explicit action or component route.

Accessibility¶

Source order must remain the intended reading order at every breakpoint.

Security¶

Escaping and SafeUrl / TrustedHtml are framework concerns; authorization and data exposure remain application code. Redact secrets before rendering.

Common mistakes¶

Do not hold a column handle and mutate it later; construct every cell as a child.
Do not copy docs-preview JavaScript into an application server.

Testing¶

from hedron import RenderMode, render

result = render(component, mode=RenderMode.FRAGMENT)
assert result.html
assert not result.diagnostics

All component demos · Built-in API · Testing

Grid¶