When using the second way described above to use nested framesets, updating the "right" frame can also be done by a link in one of the two documents in the innermost frames, if it uses "_parent" as value for TARGET. The second frame is filled in not by a document but by another frameset. Nested FRAMESET tags. This example uses nested framesets to display two menu frames, one along the top and one down the right-hand side. An inline iframe tag in your text editor. Thankfully, today’s browsers have come along way with their implementation of frames, and if properly used, frames can help to make a site more attractive and easier to navigate. Create Nested Frameset in HTML and CSS Description. The