CSS中的字体大小与斜杠 [英] Size of font in CSS with slash

问题描述

这里的斜线是什么意思：

What does the slash mean here:

font: 100%/120%;

推荐答案

这实际上设置了两个属性， / p>

This actually sets two properties and is equivalent to:

font-size: 100%;
line-height: 120%;

引用官方文档：

此属性的语法基于传统的排版速记符号设置与字体相关的多个属性。

The syntax of this property is based on a traditional typographical shorthand notation to set multiple properties related to fonts.

正如David M在评论中所说，指定字体大小为 x pt在 y pt上的传统，表示行高上的字形大小。

As David M said in the comments, it mirrors the typesetting tradition of specifying typeface sizes as "x pt on y pt" to denote the glyph size on line height.

但是你的问题中的例子实际上是错误的，并且会被浏览器忽略：你只能在 font 简写符号中组合这两个属性，并且你必须至少指定字体大小和家庭。因此，简单地写 font：100％/ 120％; 是不够的;您可以添加一个通用家族名称，使其有效，例如：

But the example in your question is actually wrong and would be ignored by the browser: you can only combine these two properties in the font shorthand notation, and you must specify at least both the font size and family. Simply writing font: 100%/120%; is therefore not enough; you could add a generic family name to make it valid though, e.g.:

font: 100%/120% serif;

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