The text-emphasis CSS property is a shorthand property for setting text-emphasis-style and text-emphasis-color in one declaration. This property will apply the specified emphasis mark to each character of the element's text, except separator characters, like spaces, and control characters.
The text-emphasis property is quite different from text-decoration. The text-decoration property does not inherit, and the decoration specified is applied across the whole element. However, text-emphasis does inherit, which means it is possible to change emphasis marks for descendents.
The size of the emphasis symbol, like ruby symbols, is about 50% of the size of the font, and text-emphasis may affect line height when the current leading is not enough for the marks.
text-emphasis doesn't reset the value of text-emphasis-position. This is because if the style and the color of emphasis marks may vary in a text, it is extremely unlikely that their position will. In the very rare cases when this is needed, the property text-emphasis-position.
| Initial value | as each of the properties of the shorthand:
|
|---|---|
| Applies to | all elements |
| Inherited | no |
| Media | visual |
| Computed value | as each of the properties of the shorthand:
|
| Animatable | as each of the properties of the shorthand:
|
| Canonical order | order of appearance in the formal grammar of the values |
/* 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;
nonefilledfilled nor open is present, this is the default.opendot'•' (U+2022), and the open dot is '◦' (U+25E6).circle'●' (U+25CF), and the open circle is '○' (U+25CB). This is the default shape in horizontal writing modes when no other shape is given.double-circle'◉' (U+25C9), and the open double-circle is '◎' (U+25CE).triangle'▲' (U+25B2), and the open triangle is '△' (U+25B3).sesame'﹅' (U+FE45), and the open sesame is '﹆' (U+FE46). This is the default shape in vertical writing modes when no other shape is given.<string><string>. The UA may truncate or ignore strings consisting of more than one grapheme cluster.<color>currentColor.<'text-emphasis-style'> || <'text-emphasis-color'>
h2 {
/* text-emphasis: shape color; */
text-emphasis: triangle #555;
} | Specification | Status | Comment |
|---|---|---|
| CSS Text Decoration Level 3 The definition of 'text-emphasis' in that specification. | Candidate Recommendation | Initial definition |
| 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 |
[1] In Firefox 45, it wasn't activated by default: in about:config, the user has to set the preference layout.css.text-emphasis.enabled to true. Activated by default in Firefox 46, this preference was removed in Firefox 49.
text-emphasis-style, text-emphasis-color.text-emphasis-position property allowing to define the position of the emphasis marks.
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https://developer.mozilla.org/en-US/docs/Web/CSS/text-emphasis