Deprecated : FRAME & FRAMESET tags are not supported in HTML5 , better to avoid.
Use <iframe> instead.
(1) - This divides the browser screen into 3 horizontal sections with respect to the screen resolution 30%, 30% and the remaining 40% (as * indicates remaining area)
(2) - This splits the first horizontal section into two vertical sections.
(3) - This splits the second horizontal section into two horizontal sections.