Get Rid of Zoom function on Web Activities (+/-).
I needed a way to get rid of the zoom function on Web Activities. This is the (+/-) button that hovers near the bottom right corner of the screen every time you scroll / touch the screen.
To get rid of this, paste the following line of HTML inside of the <HEAD>...here...</HEAD> section of the webpage:
<meta name="viewport" content="user-scalable=no">