Prerequisites: A font for Chinese, Japanese, and Mongolian, that can handle vertical text.

latin in mongolian

same Test passes if the order and rotation of Latin characters is the same.

ᠬᠤᠯᠤᠭᠠ the W3C i18n Activity ᠨᠠ ᠡᠨᠳᠡ
reference graphic

Assertion: [Exploratory test] Setting writing-mode to vertical-lr will cause Latin text embedded in vertical Mongolian to flow down the page, with letters rotated 90 degrees clockwise, and wrap to the right.

Notes:

This is an exploratory test because the CSS3 Text module that defines writing-mode is not yet a Recommendation.

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HTML5

vertical-text-005
Result summary & related tests