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[css] 第720天 rem和px的换算规则是怎样的？ #3777

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haizhilin2013 opened this issue Apr 4, 2021 · 2 comments

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haizhilin2013 commented Apr 4, 2021

第720天 rem和px的换算规则是怎样的？

我也要出题

haizhilin2013 added the css label

alanhe421 commented Apr 4, 2021 •

edited

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Root font-size

比如root font-size=16px，0.5rem即16*0.5=8px

CafuChino commented Apr 5, 2021

rem为相对于根元素字体大小计算倍数，1rem等于一倍html下定义字体大小
em相对父元素字体大小计算

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