Web page automatically adapts to mobile page display

Today to the client to write a user to submit a choice of language page, on the computer after using Chrome debugging, using the mobile terminal mode can be displayed normally. However, it does not display properly when it is opened from the mobile side and is displayed as a computer style.

Before having done an auto-fit page, analyze the code to find the following code in the head tag:

<name= "Viewport"content= "width=device-width,initial-scale=1.0, minimum-scale=1.0,maximum-scale=1.0 ">

Web page automatically adapts to mobile page display