How to allow a site to automatically zoom when browsing at certain resolutions

The width of the main part of my website is 960px,
In the ordinary notebook, the normal display of the effect is no problem,
But in the small screen, high resolution, such as surface3 above the time to see
There is a lot of white left on both sides.
Zoom the page to 140% on the device, and the effect is the same as a normal display.
Because of this kind of equipment, the use of the present is very few,
So want to ask, how should let such device visitor, can automatically zoom to 140% display?

Reply content:

The width of the main part of my website is 960px,
In the ordinary notebook, the normal display of the effect is no problem,
But in the small screen, high resolution, such as surface3 above the time to see
There is a lot of white left on both sides.
Zoom the page to 140% on the device, and the effect is the same as a normal display.
Because of this kind of equipment, the use of the present is very few,
So want to ask, how should let such device visitor, can automatically zoom to 140% display?

Find a responsive plan,
The vast number of the market,
My blog uses the pure CSS of Yahoo, only 2 kinds of cases. Can actually be divided into finer points.

Use with CSS media query.

@media (max-width: 1024px) {    html {        font-size: 22px;    }}

The agency uses REM:

body {    max-width: 60rem;}

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