<frameset>
지원이 중단되었습니다: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
요약
속성(=Attributes)
다른 모든 HTML elments와 마찬가지로, <frameset> element는 전역속성(global attributes)이 적용된다.
예시
<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>