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• 范例
• 规范
• 另请参阅
• 相关话题

specified value of a 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 initial value will be used.

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 values. 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