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\u80cc\u666f<\/h2>\n\n\n\n

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\u95ee\u9898<\/h2>\n\n\n\n

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px\u8f6crem<\/h2>\n\n\n\n

<\u4f60\u8981\u8f6c\u6362\u7684px\u6570> \/ parseFloat(getComputedStyle(document.documentElement).fontSize)<\/code><\/p>\n\n\n\n

rem\u8f6cpx<\/h2>\n\n\n\n

parseFloat(getComputedStyle(document.documentElement).fontSize) * <\u4f60\u8981\u8f6c\u6362\u7684rem\u6570><\/code><\/p>\n\n\n\n

\u8865\u5145<\/h2>\n\n\n\n

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