CSS masonry-auto-flow Property Reference

The CSS masonry-auto-flow property is a nonstandard property in CSS Grid Layout. Review its formal syntax, computed behavior, and practical declarations.

Updated 2026-08-12

masonry-auto-flow overview

The CSS masonry-auto-flow property is a nonstandard property in CSS Grid Layout. 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

masonry-auto-flow formal syntax

Field	Value
Formal syntax	[ pack \| next ] \|\| [ definite-first \| ordered ]
Initial value	pack
Applies to	gridContainersWithMasonryLayout
Inherited	No
Percentages	no
Computed value	asSpecified
Animation type	discrete
Media	visual
Specification group	CSS Grid Layout
Status	Nonstandard

Practical examples

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

masonry-auto-flow live example

CSS

.reset-example {
  masonry-auto-flow: initial;
}

.inherit-example {
  masonry-auto-flow: inherit;
}

@supports (masonry-auto-flow: initial) {
  .supported {
    masonry-auto-flow: initial;
  }
}