012_001_Grp_HTML+CSS+JAVASCRIPT

撰写于 2024
  • html tricks

    2024年07月18日 在 012_001_Grp_HTML+CSS+JAVASCRIPT

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    001. what is the unit of "em"? em does not have its full-name. it standed for the width of alphabet “M” now it always stands for the unit of with of font.

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