Definition of em in English:

em

noun ɛm

Printing

1A unit for measuring the width of printed matter, equal to the height of the type size being used.
Example sentencesExamples
- It doesn't matter which unit you use - zero horseshoes is the same as zero pixels, ems, or percentages.
- From there, sizing descendant elements with ems (a relative unit of measurement) becomes much more logical: 1em is 10 px, 1.6em is 16 px, .9em is 9px, and so forth.
- Sterne was almost compulsively attentive to page layout and typography, going so far as to specify the length of each dash in printer's ems.
1. 1.1 A unit of measurement equal to twelve points.
  Example sentencesExamples
  This reduced the text to an unreadable level when the CSS specified sizes in ems, but only reduced it slightly when specified as percentages.
  So, a font size of 1.25 ems will be displayed as 1.25 pixels.

Origin

Late 18th century: the letter M represented as a word, since it is approximately this width.

Rhymes

ahem, Belém, Clem, condemn, contemn, crème de la crème, gem, hem, Jem, LibDem, phlegm, pro tem, rem, Shem, stem, them

em¹

nounemɛm

Printing

1A unit for measuring the width of printed matter, equal to the height of the type size being used.
Example sentencesExamples
- From there, sizing descendant elements with ems (a relative unit of measurement) becomes much more logical: 1em is 10 px, 1.6em is 16 px, .9em is 9px, and so forth.
- It doesn't matter which unit you use - zero horseshoes is the same as zero pixels, ems, or percentages.
- Sterne was almost compulsively attentive to page layout and typography, going so far as to specify the length of each dash in printer's ems.
1. 1.1 A unit of measurement equal to twelve points.
  Example sentencesExamples
  This reduced the text to an unreadable level when the CSS specified sizes in ems, but only reduced it slightly when specified as percentages.
  So, a font size of 1.25 ems will be displayed as 1.25 pixels.

Origin

Late 18th century: the letter M represented as a word, since it is approximately this width.

EM²

abbreviation

1Electromagnetic.
2Engineer of Mines.
3Enlisted man (men).

单词	em
释义	Definition of em in English: em noun ɛm Printing 1A unit for measuring the width of printed matter, equal to the height of the type size being used. Example sentencesExamples It doesn't matter which unit you use - zero horseshoes is the same as zero pixels, ems, or percentages. From there, sizing descendant elements with ems (a relative unit of measurement) becomes much more logical: 1em is 10 px, 1.6em is 16 px, .9em is 9px, and so forth. Sterne was almost compulsively attentive to page layout and typography, going so far as to specify the length of each dash in printer's ems. 1.1 A unit of measurement equal to twelve points. Example sentencesExamples This reduced the text to an unreadable level when the CSS specified sizes in ems, but only reduced it slightly when specified as percentages. So, a font size of 1.25 ems will be displayed as 1.25 pixels. Origin Late 18th century: the letter M represented as a word, since it is approximately this width. Rhymes ahem, Belém, Clem, condemn, contemn, crème de la crème, gem, hem, Jem, LibDem, phlegm, pro tem, rem, Shem, stem, them em¹ nounemɛm Printing 1A unit for measuring the width of printed matter, equal to the height of the type size being used. Example sentencesExamples From there, sizing descendant elements with ems (a relative unit of measurement) becomes much more logical: 1em is 10 px, 1.6em is 16 px, .9em is 9px, and so forth. It doesn't matter which unit you use - zero horseshoes is the same as zero pixels, ems, or percentages. Sterne was almost compulsively attentive to page layout and typography, going so far as to specify the length of each dash in printer's ems. 1.1 A unit of measurement equal to twelve points. Example sentencesExamples This reduced the text to an unreadable level when the CSS specified sizes in ems, but only reduced it slightly when specified as percentages. So, a font size of 1.25 ems will be displayed as 1.25 pixels. Origin Late 18th century: the letter M represented as a word, since it is approximately this width. EM² abbreviation 1Electromagnetic. 2Engineer of Mines. 3Enlisted man (men). noun.1 abbr.1
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Definition of em in English:

em

Origin

Rhymes

em1

Origin

EM2

em¹

EM²