Use CSS3 scale to achieve overall web page scaling_javascript skills

Today I learned about the overall zoom effect of QQ mailbox web pages. It turns out that the implementation method is very simple. The code is as follows:

Copy the code The code is as follows:

< meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1, user-scalable=no">

Try changing the window size, what will you find?