::marker

这是一个实验中的功能
此功能某些浏览器尚在开发中，请参考浏览器兼容性表格以得到在不同浏览器中适合使用的前缀。由于该功能对应的标准文档可能被重新修订，所以在未来版本的浏览器中该功能的语法和行为可能随之改变。

::marker CSS 伪元素选择列表的前置标记，一般包含着重符号或数字。任何设置 display: list-item属性的元素或伪元素都能使用::marker 比如 <li> 和<summary> 元素.

::marker {
  color: blue;
  font-size: 1.2em;
}

可用的属性

Only certain CSS properties can be used in a rule with ::marker as a selector:

::marker

<ul>
  <li>Peaches</li>
  <li>Apples</li>
  <li>Plums</li>
</ul>

ul li::marker {
  color: red;
  font-size: 1.5em;
}

Specification	Status	Comment
CSS Pseudo-Elements Level 4 ::marker	Working Draft	No significant change.
CSS Lists Module Level 3 ::marker	Working Draft	Initial definition.

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`::marker` Experimental	Chrome Full support 80 Disabled Full support 80 Disabled Disabled From version 80: this feature is behind the `Enable experimental Web Platform features` preference. To change preferences in Chrome, visit chrome://flags.	Edge No support No	Firefox Full support 68	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android Full support 80 Disabled Full support 80 Disabled Disabled From version 80: this feature is behind the `Enable experimental Web Platform features` preference. To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support 68	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No

Full support: Full support
No support: No support
Experimental. Expect behavior to change in the future.: Experimental. Expect behavior to change in the future.
User must explicitly enable this feature.: User must explicitly enable this feature.