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em    音标拼音: ['ɛm]
n. M的字;全方

M的字;全方

em
n 1: a quad with a square body; "since `em quad' is hard to
distinguish from `en quad', printers sometimes called it a
`mutton quad'" [synonym: {em}, {em quad}, {mutton quad}]
2: a linear unit (1/6 inch) used in printing [synonym: {em}, {pica
em}, {pica}]

M \M\, n.
1. (Print.) A quadrat, the face or top of which is a perfect
square; also, the size of such a square in any given size
of type, used as the unit of measurement for that type:
500 m's of pica would be a piece of matter whose length
and breadth in pica m's multiplied together produce that
number. [Written also {em}.]
[1913 Webster]

2. (law) A brand or stigma, having the shape of an M,
formerly impressed on one convicted of manslaughter and
admitted to the benefit of clergy.
[1913 Webster]

{M roof} (Arch.), a kind of roof formed by the junction of
two common roofs with a valley between them, so that the
section resembles the letter M.
[1913 Webster]


'Em \'Em\
An obsolete or colloquial contraction of the old form hem,
them. --Addison.
[1913 Webster]


Em \Em\, n. (Print.)
The portion of a line formerly occupied by the letter m, then
a square type, used as a unit by which to measure the amount
of printed matter on a page; the square of the body of a
type.
[1913 Webster]


Em- \Em-\
A prefix. See {En-}.
[1913 Webster]



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  • What is the difference between lt;strong gt; and lt;em gt; tags?
    Yeah, the definition of what ‘strong emphasis’ is compared to just ‘emphasis’ is pretty woolly The only standard definition would be “it's emphasised, but more!!”
  • Whats the difference between lt;b gt; and lt;strong gt;, lt;i gt; and lt;em gt;?
    strong or em means you want the text to be rendered in a way that the user understands as "important" The default is to render strong as bold and em as italics, but some other cultures might use a different mapping Like strings in a program, b and i would be "hard coded" while strong and em would be "localized"
  • What is the em font-size unit? How much is it in pixels?
    The 'em' unit is equal to the computed value of the 'font-size' property of the element on which it is used The exception is when 'em' occurs in the value of the 'font-size' property itself, in which case it refers to the font size of the parent element It may be used for vertical or horizontal measurement
  • Does it matter lt;strong gt; in lt;em gt; or lt;em gt; in lt;strong gt;?
    EM: Indicates emphasis STRONG: Indicates stronger emphasis Source The presentation of phrase elements depends on the user agent Generally, visual user agents present EM text in italics and STRONG text in bold font **Speech synthesizer user agents may change the synthesis parameters, such as volume, pitch and rate accordingly So beware
  • How does rem differ from em in CSS? - Stack Overflow
    While em is relative to the font-size of its direct or nearest parent, rem is only relative to the html (root) font-size em gives the ability to control an area of a design As in, scale the type in that specific area relatively rem gives the ability to scale type across the entire page easily
  • html - what is the benefit of lt;em gt; vs lt;i gt;? - Stack Overflow
    em has the purpose of giving emphasis to the content In practice emphasised content is typically displayed italicised, so the difference on the face of it is non-existing from a presentation standpoint However, emphasis is semantic while italics is presentation i was deprecated in favour of em to make HTML a truly semantic markup It may
  • What is the difference between lt;cite gt;, lt;em gt;, and lt;i gt; tags of HTML?
    cite em is HTML 5 - standard, which insists in meaning For a long time, old HTML (like <i> ) is used for layout display But the new standard requires that HTML should only consists of content, leaving layout works for css
  • In CSS, what is the difference between VW and EM?
    EM, is a measurement of the scale of a font compared to the rules direct parent Several answers here seem to be making some fundamental errors in definitions of font sizes Such as stated: em refers to the current font-size and scalable with respect to it For instance, if the font-size of document is 14px, then 1em = 14px; 2em = 28px and so on
  • css - Is sizing fonts using em still relevant? - Stack Overflow
    Don't use em when you really mean % The only reason em works is because in CSS 1em which is suppose to represent the size of the letter "M" (em comes from "M") is actually equivalent to the font size So when you're writing 1em you are actually writing "100% of inherited font-size" The em is meant to be used when specifying box dimensions
  • Font size in CSS - % or em? - Stack Overflow
    em: Sometimes browsers use the wrong reference size, but of the relative units it's the one with least problems You might find it interpreted as px sometimes though pt: Differs greatly between resolutions, and should not be used for display It's quite safe for print use though px: The only reliable absolute unit on screen





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