文本属性 | text-emphasis

text-emphasis

该text-emphasis CSS属性是在一个声明同时设置text-emphasis-style和text-emphasis-color属性的简写形式。该属性将把指定的强调标记应用到元素文本中除去分隔符字符（如空格和控制字符）的每个字符。

/* Initial value */
text-emphasis: none; /* No emphasis marks */

/* <string> value */
text-emphasis: 'x';
text-emphasis: '点';
text-emphasis: '\25B2';
text-emphasis: '*' #555;
text-emphasis: 'foo'; /* Should NOT use. It may be computed to or rendered as 'f' only */

/* Keywords value */
text-emphasis: filled;
text-emphasis: open;
text-emphasis: filled sesame;
text-emphasis: open sesame;

/* Keywords value combined with a color */
text-emphasis: filled sesame #555;

/* Global values */
text-emphasis: inherit;
text-emphasis: initial;
text-emphasis: unset;

该text-emphasis属性是完全不同于text-decoration的。该text-decoration属性不会继承给后代，并且指定的装饰会应用于整个元素。然而，text-emphasis属性不会继承，这意味着我们可以改变后代的强调标记。

强调符号（比如ruby字符）的大小大约是字体大小的50％，并且在当前行距不足的情况下，text-emphasis可属性可能会修改当前的行高。

text-emphasis不重置text-emphasis-position属性的值。这是因为，当文本中的强调标记的风格和颜色发生改变时，他们的位置却很可能不发生改变。在极少数情况下，才需要text-emphasis-position属性。

Initial value	as each of the properties of the shorthand: text-emphasis-style: none text-emphasis-color: currentcolor
Applies to	all elements
Inherited	no
Media	visual
Computed value	as each of the properties of the shorthand: text-emphasis-style: as specified text-emphasis-color: computed color
Animation type	as each of the properties of the shorthand: text-emphasis-color: a color text-emphasis-style: discrete
Canonical order	order of appearance in the formal grammar of the values

text-emphasis-style: none

text-emphasis-color: currentcolor

Applies to all elements   [Inherited](inheritance) no   Media visual   [Computed value](computed_value) as each of the properties of the shorthand:

text-emphasis-style：具体规定

text-emphasis-color：颜色数值

Animation type as each of the properties of the shorthand:

text-emphasis-color：颜色

text-emphasis-style: discrete

Canonical order order of appearance in the formal grammar of the values

语法

可能值

none——无强调标记。

形式语法

<'text-emphasis-style'> || <'text-emphasis-color'>

实例

设有强调形状和颜色的标题

这个例子绘制了一个标题，并用三角形来强调每个字符。

CSS

h2 {
  text-emphasis: triangle #D55;
}

HTML

<h2>This is important!</h2>

结果

规范

Specification	Status	Comment
CSS Text Decoration Module Level 3The definition of 'text-emphasis' in that specification.	Candidate Recommendation	Initial definition

浏览器兼容性

Feature	Firefox (Gecko)	Chrome	Internet Explorer	Opera	Safari
Basic support	46 (46)1	25.0-webkit	No support	15.0-webkit	6.1-webkit 7.1

Feature	Firefox Mobile (Gecko)	Android	IE Phone	Opera Mobile	Safari Mobile
Basic support	46 (46)1	4.4-webkit	No support	33-webkit	7.1