BoxAdcontent.document.write(""); create Nested Frameset. A single frameset file can contain multiple nested framesets. Create a predefined frameset and display an existing document in a frame Place the insertion point in a document and do one of the following: Choose Insert > HTML > Frames and select a predefined frameset. An inline iframe tag in your text editor. By doing this you can create frames that are not strict grids like in the example above. A frameset tag is the collection of frames in the browser window. Although iframe is still there in HTML5, its use is not recommended for embedding content meant for the user. This tag can also be nested inside other