How html file VScode run in the browser?

First generate a html file.
Open the file.
In the first line of the input! No, move the mouse! Back number, press the tab key completion.

It generated a html file content.
How to run in chrome as well?

1. Plug:
   View in Browser

2. Right-click the workspace html on, view in browser.

Note:
it must be a workspace html. Not in the workspace html, right view in browser does not appear.