This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The -ms-flow-into CSS property is a Microsoft extension that gets or sets a value that identifies an iframe container in the document that serves as the region's data source.

This property is read/write.

Initial valuefalse
Applies toiframe elements
Computed valueas specified
Animation typediscrete
Canonical orderthe unique non-ambiguous order defined by the formal grammar


The -ms-flow-into property is specified as one of the following values.



Default. No container has been specified.


The name of the region container.

Formal syntax

[ none | <custom-ident> ]#


Not part of any specification.

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 Last updated by: jameshkramer,