Ensure, where possible, that different default fonts are assigned for Simplified Chinese, Traditional Chinese (Taiwan), Traditional Chinese (Hong Kong), Japanese, and Korean in your user agent options. If you have JavaScript enabled, you can type the name of the font set into each of the following form fields, and as you remove focus from the input field, it will provide a reference glyph that you can compare against the output of the test.
Chinese Simplified: 雪 Chinese Traditional (Taiwan): 雪 Chinese Traditional (Hong Kong): 雪 Japanese: 雪 Korean: 雪
Check whether there is variation in the fonts used for the following characters.
雪
雪 zh
雪 zh-Hans
雪 zh-CN
雪 zh-Hant
雪 zh-TW
雪 zh-HK
雪 ja
雪 ko
Assertion: [Exploratory test] If no font-family is applied using styling, the user agent will select different fonts for display of ideographic text when language attribute values vary in the markup.
Notes:
When no other styling is specified, some user agents automatically choose a different font for the display of Unicode text in Traditional Chinese, Simplified Chinese, Japanese and Korean, depending on the setting of the lang/xml:lang attribute. The test seeks to show whether that is the case for the user agent where this page is displayed.
This behaviour is not specified in the HTML specification.
The test assumes that recognizably different default fonts are assigned in the browser's font preferences for Simplified Chinese, Traditional Chinese, Japanese, and Korean (so that you can tell the difference). Some user agents also allow for a distinction between Traditional Chinese for Taiwan and Hong Kong, in which case different fonts should be applied for each. The same font should be applied to the serif and sans-serif settings, to eliminate noise from the overall page setting.