CSS box-decoration-break Property Reference

The CSS box-decoration-break property is a standard property in CSS Fragmentation. Review its formal syntax, computed behavior, and practical declarations.

Updated 2026-08-12

box-decoration-break overview

The CSS box-decoration-break property is a standard property in CSS Fragmentation. Review its formal syntax, computed behavior, and practical declarations.

The property is not inherited by default. Use an explicit global keyword when inheritance is intended.

Syntax and formal definition

box-decoration-break formal syntax

Field	Value
Formal syntax	slice \| clone
Initial value	slice
Applies to	allElements
Inherited	No
Percentages	no
Computed value	asSpecified
Animation type	discrete
Media	visual
Specification group	CSS Fragmentation
Status	Standard

Practical examples

These declarations demonstrate valid ways to set box-decoration-break. The initial and inherit global keywords remain available even when a property-specific value is preferable.

box-decoration-break live example

CSS

.reset-example {
  box-decoration-break: initial;
}

.inherit-example {
  box-decoration-break: inherit;
}

@supports (box-decoration-break: initial) {
  .supported {
    box-decoration-break: initial;
  }
}