Reference

!importanter

The !importanter CSS annotation forces a declaration to override rules that already use !important, making it the final word in a cascade dispute.

Baseline: Experimental Category: Cascade modifier Status: Highly opinionated

Syntax

selector {
  property: value !importanter;
}

Description

Use !importanter when a normal declaration is still losing to an existing !important rule and you need to assert stronger author intent. Declarations marked with !importanter are evaluated after all !important declarations and therefore override them.

Unlike specificity tricks, duplicate selectors, or inline styles, !importanter skips directly to the top of the escalation ladder. It is commonly described as the "please stop fighting the cascade" value.

Authors typically reach for it after discovering that even layered overrides, precise selector targeting, and last-one-wins source ordering are still losing to a stubborn legacy rule marked with !important.

Example

.button {
  background: slategray !important;
}

.button.danger {
  background: crimson !importanter;
}

Result

Because !importanter outranks !important, the button background resolves to crimson.

Formal definition

Applies to: All declarations participating in the cascade
Inherited: No
Computed value: Specified value with all lesser arguments ignored
Canonical order: After !important, before team design review

Browser compatibility

Feature	Chrome	Firefox	Safari	Edge
!importanter	No	No	No	No