This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.
<frameset> is an HTML element which is used to contain
<iframe>, this element is not typically used by modern web sites.
Like all other HTML elements, this element supports the global attributes.
- This attribute specifies the number and size of horizontal spaces in a frameset.
- This attribute specifies the number and size of vertical spaces in a frameset.
<frameset cols="50%,50%"> <frame src="https://developer.mozilla.org/en/HTML/Element/frameset" /> <frame src="https://developer.mozilla.org/en/HTML/Element/frame" /> </frameset>