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Why are font sizes different when formatting is the same?

Thunderbird その他
coffent replied
coffent
coffent

When I reply to an HTML message (in HTML) the text I type is a different size than that in the original message. The original message text is "Body Text, Arial, Medium". If I format my reply text exactly the same, the font is smaller than the original. If I increase the font size, then the font is larger than the original. Why aren't text passages formatted in exactly the same way, the same?

When I reply to an HTML message (in HTML) the text I type is a different size than that in the original message. The original message text is "Body Text, Arial, Medium". If I format my reply text exactly the same, the font is smaller than the original. If I increase the font size, then the font is larger than the original. Why aren't text passages formatted in exactly the same way, the same?

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Matt
Matt
  • トップ 25 の貢献者

選ばれた解決策

While Thunderbird may be telling you it is Arial medium. Most likely it is Arial and a number either in points or pixels. Microsoft Outlook in particular spend inordinate amount of space on specifying fonts in point (which are actually no good in HTML)

The only way to be sure exactly how the original mail is defined is to look at the message source (ctrl+U)

coffent
coffent 質問者

Thanks - you're right. ctrl+U shows the original message as 

"[div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"]"

and my reply as "[font face="Arial"][span id="yui_3_16_0_1_1445372843970_36749"][font size="+1"]" (where I've substituted "[" for ">")

この投稿は coffent により に変更されました