It’s about one question in a test paper. 不管什么情况，你知道一个原则就 ok 了： html 是内容展示带有语义，css 是界面样式相关。 那么 hidden 这个属性，就表示与浏览者不相关、不重要，浏览器在解析的时候，既然不相. Hidden seems a bit strange here.
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The answer to question 26 is “hidden”, but i was wondering how about “hiding”. Do me a favour, please. If both are ok, which is.
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I would expect i saw/noticed a man hiding/standing/waiting etc. The past participle hidden implies a passive construction:.
