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• 规范
• 另请参阅
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initial value of a CSS property is its default value, as listed in its definition table in the specification. The usage of the initial value depends on whether a property is inherited or not:

• For inherited properties , the initial value is used on the root element only , as long as no specified value is supplied.
• For non-inherited properties , the initial value is used on 所有元素 , as long as no specified value is supplied.

You can explicitly specify the initial value by using the initial 关键词。

注意： The initial value should not be confused with the value specified by the browser's style sheet.

规范

规范	状态	注释
CSS Cascade 4		Formal definition.
CSS Level 2 (Revision 1) The definition of 'initial value' in that specification.	推荐	Implicit definition.

另请参阅

• initial
• 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： Jul 7, 2020

相关话题

1. CSS
2. CSS 参考
3. initial value