Keyboard input

A key highlights a keyboard button inside an instruction and sets it apart from ordinary text and code.

Example

Press Esc to close the window.

Markdown

:kbd[Ctrl]

The square brackets hold the key label, as on the keyboard. It is plain text: HTML does not work inside, the < and > signs are shown as is.
An empty key :kbd[] stops the build with the error CONTENT_COMPONENT_SLOT_REQUIRED.

Write each key separately and put a + sign between them as plain text.

Open search with ⌘ + K, then press Enter.

The key is output as a <kbd> element: screen readers recognise it as keyboard input.
Write the label as a word or a symbol, as on the keyboard: Esc, Enter, ⌘.
For a menu command, a file name or code choose plain text or backticks, not a key.

No parameters.

Markup with parameters, for example :kbd[Esc]{size=1}, stops the build with the error CONTENT_COMPONENT_PROP_UNKNOWN.