Visual Studio 2017 - Design View/Split view

Question

I'm using Visual Studio 2017, designing an HTML page with a linked JavaScript page for functionality. Up until today, beneath my main pane where my code is, there was a bar that had 3 options, Design, Split and Source. I'm not sure why or how the bar has vanished, but it has and I'm not sure what it is called or how to display it again. I have tried Microsoft support to no avail, I've googled and not been successful, and of course tried a variety of things within Visual Studio.

Answer 1

May be useful for some one coming later

Go to tools-->Option-->Web Forms Designer , Select Split View Vertically option. Restart the Visual Studio