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markdownlint/doc/md003.md

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MD003 - Heading style

Tags: headers, headings

Aliases: header-style, heading-style

Parameters:

  • style: Heading style (string, default consistent, values atx/atx_closed/consistent/setext/setext_with_atx/setext_with_atx_closed)

This rule is triggered when different heading styles (atx, setext, and 'closed' atx) are used in the same document:

# ATX style H1

## Closed ATX style H2 ##

Setext style H1
===============

Be consistent with the style of heading used in a document:

# ATX style H1

## ATX style H2

The setext_with_atx and setext_with_atx_closed doc styles allow atx-style headings of level 3 or more in documents with setext style headings:

Setext style H1
===============

Setext style H2
---------------

### ATX style H3

Note: the configured heading style can be a specific style to use (atx, atx_closed, setext, setext_with_atx, setext_with_atx_closed), or simply require that the usage is consistent within the document.

Rationale: Consistent formatting makes it easier to understand a document.