HTML5 meta name = “viewport” doesn't work as expected

To solve the issue for HTML5 meta viewport, you can any of the following fix:

<meta name = "viewport" content = "user-scalable = no, initial-scale = 1,
   maximum-scale = 1, minimum-scale = 1, width = 400, height = device-height,
   target-densitydpi=medium-dpi" />

You can also try this:

<meta name = "viewport" content = "width=device-width, initial-scale = 1;"/>

Let us say you have a site width of 100px, then it won’t display the whole page, with

initial-scale = 1