initial
CSS 关键字 initial
将属性的初始(或默认)值应用于元素。不应将初始值与浏览器样式表指定的值混淆。它可以应用于任何 CSS 属性。这包括 CSS 简写 all
,initial 可用于将所有 CSS 属性恢复到其初始状态。
备注: 在继承的属性上,初始值可能是意外的。你应该考虑使用 inherit
, unset
,或revert
(en-US) 关键字代替。
示例
HTML
<p>
<span>This text is red.</span>
<em>This text is in the initial color (typically black).</em>
<span>This is red again.</span>
</p>
CSS
p {
color: red;
}
em {
color: initial;
}
Specifications
Specification |
---|
CSS Cascading and Inheritance Level 4 # initial |
浏览器兼容性
BCD tables only load in the browser
参见
- Use
unset
to set a property to its inherited value if it inherits, or to its initial value if not. - Use
revert
(en-US) to reset a property to the value established by the user-agent stylesheet (or by user styles, if any exist). - Use
inherit
to make an element's property the same as its parent. - The
all
property lets you reset all properties to their initial, inherited, reverted, or unset state at once.