This feature is not Baseline because it does not work in some of the most widely-used browsers.
The ::marker CSS pseudo-element selects the marker box of a list item, which typically contains a bullet or number. It works on any element or pseudo-element set to display: list-item, such as the <li> and <summary> elements.
li::marker {
content: "✝ ";
font-size: 1.2em;
}
<p>Group known as Mercury Seven:</p> <ul> <li>Malcolm Scott Carpenter</li> <li>Leroy Gordon (Gordo) Cooper Jr.</li> <li>John Herschel Glenn Jr.</li> <li>Virgil Ivan (Gus) Grissom</li> <li>Walter Marty (Wally) Schirra Jr.</li> <li>Alan Bartlett Shepard Jr.</li> <li>Donald Kent (Deke) Slayton</li> </ul>
The ::marker pseudo-element supports a limited number of CSS properties, including:
white-space propertycolortext-combine-upright, unicode-bidi, and direction propertiescontent propertyNote: The specification states that additional CSS properties may be supported in the future.
::marker {
/* ... */
}
<ul> <li>Peaches</li> <li>Apples</li> <li>Plums</li> </ul>
ul li::marker {
color: red;
font-size: 1.5em;
}
| Specification |
|---|
| CSS Pseudo-Elements Module Level 4> # marker-pseudo> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
::marker |
86 | 86 | 68 | 72 | 11.1Safari support is limited tocolor and font-size. |
86 | 68 | 61 | 11.3Safari on iOS support is limited tocolor and font-size. |
14.0 | 86 | 11.3WebView on iOS support is limited tocolor and font-size. |
animation_and_transition_support |
86 | 86 | 80 | 72 | 14.1 | 86 | 80 | 61 | 14.5 | 14.0 | 86 | 14.5 |
<ol>, <li>, <summary>
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https://developer.mozilla.org/en-US/docs/Web/CSS/::marker