initial
CSS关键字将属性的初始(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。
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 | Status | Comment |
---|---|---|
CSS Cascading and Inheritance Level 4 initial |
Candidate Recommendation | No changes from Level 3. |
CSS Cascading and Inheritance Level 3 initial |
Candidate Recommendation | Initial definition. |
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
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.