html - 检查器窗口html中的::标记是什么意思？

Question

我在调试控制台看到有如下元素

<li>
    ::marker
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</li>

::marker 是什么意思？

Answer 1

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.

— https://developer.mozilla.org/en-US/docs/Web/CSS/::marker