模板:Diagonal split header

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Usage

This template simulates a table header cell split diagonally, a device often used to compactly label headers of rows and columns, as in this example:

To From	Solid	Liquid	Gas
Solid	Solid-solid transformation	Melting	Sublimation
Liquid	Freezing	—	Boiling/evaporation
Gas	Deposition	Condensation	—

To use it, create a header cell using ! followed by {{diagonal split header|NATURE-OF-ROW-HEADERS|NATURE-OF-COLUMN-HEADERS}}.

As the effect is achieved by drawing a diagonal line across the cell, the two headers are still part of the same cell and can easily overrun the line. A remedy is to pad the headers with non-breaking spaces ( ), line breaks (<br />), and/or CSS (escape = signs as {{=}}), as in the example above. The template user is responsible for checking that it does not overrun on common Web browsers.

Spanning columns and rows, and collapsible and sortable tables

The template is compatible with collapsible tables, and cells using colspan or rowspan, in which case place the colspan/rowspan attribute between ! and {{Diagonal split header ...}}. It is not compatible with sortable tables, as the sort arrows are not drawn, but this problem can be resolved by using a second header row:

n   City		2025	2026
		Dec	Jan	Feb
Roma	Rome	8	1	6
Venezia	Venice	3	5	7
Firenze	Florence	4	9	2

Template data

#	Label	Description	Example	Type	Required
1	Rows	Header of row headers, shown on the bottom left	Y-axis	string	true
2	Columns	Header of column headers, shown on the top right	X-axis	string	true
3	Background colour	Optional colour of background, use transparent for standard non-header background. Default = #eaecf0	transparent	string	false

See also

• Template:Diagonal split header on Wikipedia