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• 范例
• 规范
• 另请参阅
• 相关话题

specified value 的 CSS property is the value it receives from the document's style sheet. The specified value for a given property is determined according to the following rules:

1. If the document's style sheet explicitly specifies a value for the property, the given value will be used.
2. If the document's style sheet doesn't specify a value but it is an inherited property, the value will be taken from the parent element.
3. If none of the above pertain, the element's 初始值 会被使用。

范例

HTML

<p>My specified color is given explicitly in the CSS.</p>
<div>The specified values of all my properties default to their
    initial values, because none of them are given in the CSS.</div>
<div class="fun">
  <p>The specified value of my font family is not given explicitly
      in the CSS, so it is inherited from my parent. However,
      the border is not an inheriting property.</p>
</div>
					

CSS

.fun {
  border: 1px dotted pink;
  font-family: fantasy;
}
p {
  color: green;
}
					

结果

规范

规范	状态	注释
CSS Level 2 (Revision 2) The definition of 'cascaded value' in that specification.	工作草案
CSS Level 2 (Revision 1) The definition of 'cascaded value' in that specification.	推荐	初始定义。

另请参阅

• CSS 关键概念： CSS 句法 , at-rule , comments , specificity and 继承 , the box , layout modes and visual formatting models , and margin collapsing , 或 initial , computed , resolved , specified , used , and actual 值。 Definitions of value syntax , shorthand properties and replaced elements .

元数据

• 最后修改： Aug 10, 2020

相关话题

1. CSS
2. CSS 参考
3. specified value