📅  最后修改于: 2023-12-03 15:00:04.369000             🧑  作者: Mango
CSS !important is a rule that overrides other CSS rules that have been previously declared for the same element. It is often used as a last resort when other methods fail to set a property that is critical to the design.
This rule is used by adding the word "important" after a value in a style declaration. Once added, it takes precedence over any other style declarations for the same property.
Here is an example of how to use the !important rule:
p {
color: red !important;
}
In this example, any paragraph element that has the color property set to red will have the !important rule applied to it. This means that even if other CSS rules are applied, the paragraph text will still be colored red.
However, it is important to note that the use of !important should be minimized as it can make it difficult for other developers to override the style if needed. It can also lead to code bloat and make the CSS more difficult to maintain.
In addition, the use of the !important rule should be reserved for cases where it is absolutely necessary. It should not be used as a shortcut to fix a styling issue without understanding the underlying problem.
Overall, CSS !important is a useful tool for overriding style rules but should be used sparingly and with caution.