flow-from

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How to Use

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flow-from

W3C Editor's Draft

Summary

Flows content from a named flow (specified by a corresponding flow-into) through selected elements to form a dynamic chain of layout regions.

Overview table

Initial value	none
Applies to	Non-replaced block containers. (May expand in the future to include other containers.)
Inherited	No
Media	visual
Computed value	as specified
Animatable	No
CSS Object Model Property	flowFrom

Syntax

• flow-from: none
• flow-from: <ident>

Values

<ident>

Identifier that replaces content from specified named flow, flowing it from one region element to another.

none

This container is not a region. Keeps element as is, and does not transform it into a region and replace its content.

Examples

The following CSS...

CSS

article.content {
    flow-into: main;
}

section.layout > div {
    flow-from: main;
}

...flows the article through the series of div elements, transforming them into regions and replacing the placeholder text:

HTML

<article class="content">
  ...
</article>


<section class="layout">
  
Region #1
  
Region #2
  
Region #3
  
Region #4
  
Region #5
</section>

Usage

While regions can be positioned arbitrarily on the screen, their order in the document determines the order in which content flows. Regions otherwise do not have to appear as a continuous series within the DOM.

Descendants of any element whose flow-from specifies a named flow are suppressed from display, making their own flow-from values irrelevant.

For an overview of CSS Regions, see Using CSS Regions to flow content through a layout.

Related specifications

Specification	Status	Related Changes
CSS Regions Module Level 3	Editor's Draft

Compatibility

Desktop

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic Support	20 -webkit	Unsupported	8 -ms	Unsupported	534 -webkit

Mobile

Feature	Android	BlackBerry	Chrome for mobile	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Opera Mini	Safari Mobile
Basic Support	Unsupported	Unsupported	Unsupported	Unsupported	Unsupported	Unsupported	Unsupported	Unsupported

Compatibility notes

Browser	Version	Note
Internet Explorer	8	Supports only flow-into and flow-from properties in Compatibility Mode 5.
Internet Explorer	10	Supports only flow-into and flow-from properties in Compatibility Mode 9.

See also

Related articles

Regions

• CSS Regions API

• CSSRegionStyleRule

• NamedFlow

• firstEmptyRegionIndex

• getContent

• getRegions

• getRegionsByContent

• name

• overset

• regionlayoutupdate

• Region

• getComputedRegionStyle

• getRegionFlowRanges

• regionOverset

• @region

• break-after

• break-before

• break-inside

• flow-from

• flow-into

• region-fragment

• getNamedFlows()

• Using CSS Regions to flow content through a layout

External resources

• W3C editor's draft: CSS Regions Module Level 3
• Adobe Web Standards: CSS Regions
• Adobe Developer's Network: CSS3 Regions: Rich page layout with HTML and CSS3
• Sample pages
• Additional examples on codpen.io. This experimental feature is in WebKit (Chrome and Safari) and Trident (Internet Explorer). Enable experimental features to see how CSS Regions works.