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HTML <frameset> cols Attribute

HTML frameset Tag Reference HTML <frameset> tag

Example

A frameset with three columns:

<frameset cols="25%,*,25%">
  <frame src="frame_a.htm">
  <frame src="frame_b.htm">
  <frame src="frame_c.htm">
</frameset>
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Definition and Usage

The <frameset> tag is not supported in HTML5.

The cols attribute specifies the size of, and the number of columns in a <frameset>.

Each frame's width is specified in the cols attribute in a comma-separated list.

Note: The number of cols attribute values specified, defines the number of columns in the <frameset>.


Browser Support

Attribute
cols Yes Yes Yes Yes Yes

Syntax

<frameset cols="pixels|%|*">

Attribute Values

Value Description
pixels The column size in pixels (like "100px" or just "100")
% The column size in percent of the available space (like "50%")
* The rest of the available space should be assigned this column

HTML frameset Tag Reference HTML <frameset> tag