[zh-CN] Review "could not find syntax for this item" flaws

[caugner]

There are 16 Chinese pages with the {{csssyntax}} macro where no syntax can be found, resulting in:

Error: could not find syntax for this item` is shown instead.

I would recommend to look at the en-US page, and sync the section.

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16 issues — live view

Filters:

• category: Error: could not find syntax
• locale: zh-CN

File	Slug	Message
translated-content/files/zh-cn/web/css/reference/properties/-moz-user-input/index.md:40	Web/CSS/Reference/Properties/-moz-user-input	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/properties/-webkit-tap-highlight-color/index.md:25	Web/CSS/Reference/Properties/-webkit-tap-highlight-color	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/properties/box-orient/index.md:47	Web/CSS/Reference/Properties/box-orient	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/colon-moz-only-whitespace/index.md:17	Web/CSS/Reference/Selectors/:-moz-only-whitespace	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/_colon_default/index.md:20	Web/CSS/Reference/Selectors/:default	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/_colon_defined/index.md:21	Web/CSS/Reference/Selectors/:defined	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/_colon_left/index.md:21	Web/CSS/Reference/Selectors/:left	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/_colon_nth-last-child/index.md:36	Web/CSS/Reference/Selectors/:nth-last-child	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/_colon_read-only/index.md:25	Web/CSS/Reference/Selectors/:read-only	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/_colon_read-write/index.md:25	Web/CSS/Reference/Selectors/:read-write	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/_colon_valid/index.md:18	Web/CSS/Reference/Selectors/:valid	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/doublecolon-moz-range-progress/index.md:14	Web/CSS/Reference/Selectors/::-moz-range-progress	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/_doublecolon_first-line/index.md:32	Web/CSS/Reference/Selectors/::first-line	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/selectors/_doublecolon_part/index.md:15	Web/CSS/Reference/Selectors/::part	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/values/-moz-image-rect/index.md:34	Web/CSS/Reference/Values/-moz-image-rect	Error: could not find syntax for this item
translated-content/files/zh-cn/web/css/reference/values/fit-content_function/index.md:36	Web/CSS/Reference/Values/fit-content_function	Error: could not find syntax for this item