CSSLayerBlockRule: name 屬性

Baseline 已廣泛支援

此特性已經十分成熟,可在許多裝置和瀏覽器版本上使用。自 2022 年 3 月起,它已在各瀏覽器中可用。

CSSLayerBlockRule 介面的只讀 name 屬性表示關聯的級聯層(cascade layer)的名稱。

包含層名稱的字串,如果層是匿名的,則為 ""

示例

HTML

html
<output></output> <output></output>

CSS

css
output {
  display: block;
}

@layer special {
  div {
    color: rebeccapurple;
  }
}

@layer {
  div {
    color: black;
  }
}

JavaScript

js
const item1 = document.getElementsByTagName("output")[0];
const item2 = document.getElementsByTagName("output")[1];
const rules = document.styleSheets[1].cssRules;
// Note that stylesheet #1 is the stylesheet associated with this embedded example,
// while stylesheet #0 is the stylesheet associated with the whole MDN page

const layer = rules[1]; // A CSSLayerBlockRule
const anonymous = rules[2]; // An anonymous CSSLayerBlockRule

item1.textContent = `The first CSSLayerBlockRule defines the "${layer.name}" layer.`;
item2.textContent = `A second CSSLayerBlockRule defines a layer with the following name: "${anonymous.name}".`;

結果

規範

規範
CSS 級聯與繼承第五級
# dom-csslayerblockrule-name

瀏覽器相容性

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