A horizontal and vertically centered div window _jquery based on jquery

Source: Internet
Author: User
1, through the CSS to achieve horizontal center:
Copy Code code as follows:

. classname{
margin:0 Auto;

2, through the CSS to achieve horizontal center and vertical Center
Creating a horizontally centered and vertically centered div through CSS is a hassle, and you have to know the size of another div in advance:
Copy Code code as follows:

. classname{
margin:-100px 0 0-150px;

3, through jquery to achieve horizontal center and vertical center has been mentioned before, the CSS method is only applicable to a fixed size div, so to jquery to play a role:
Copy Code code as follows:

$ (window). Resize (function () {
$ ('. ClassName '). CSS ({
Position: ' Absolute ',
Left: ($ (window). Width ()-$ ('. ClassName '). Outerwidth ())/2,
Top: (window). Height ()-$ ('. ClassName '). Outerheight ())/2 + $ (document). ScrollTop ()
initialization function
$ (window). Resize ();

The advantage of this approach is that you don't need to know how big a div is, but the downside is that it can only be implemented through JavaScript.

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