A jQuery plugin that centralizes DOM element
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README.md

jQuery Center Plugin

A jQuery plugin that centralizes DOM element.

Description

This simple plugin helps you centralize your DOM element against their parent element or the window. You can also specify the top of the DOM element by passing customized settings. This plugin only works for absolute elements.

Demo

  • Please see demo.html
  • Live demo please take a look at this

Documentation

  • There is a syntax highlight version, please see this post
  • For chinese version please go here

Requires

  • jQuery 1.2.6+

Browser Compatibility

Installation

  • First, make sure you are using valid DOCTYPE
  • Include nessesary JS files
  <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
  <script type="text/javascript" src="path-to-file/jquery.center.js"></script>

Options

against

  • description: the element that the DOM element centralize against to
  • data type: string
  • default value: 'window'
  • possible value: 'window', 'parent', or '.someTarget'

top

  • description: you can specify the top of the target element
  • data type: integer
  • default value: false
  • possible value: 13, 20, 36 ... any number you want

topPercentage

  • description: or specify the top in percentage of the target element
  • data type: float
  • default value: 0.5
  • possible value: 0.1, 0.4, 0.8 ...

resize

  • description: center on window resize
  • data type: boolean
  • default value: true
  • possible value: true | false

Usage

Example code:

  // centralize #some-element against the window
  $( '#some-element' ).center();

  // centralize .some-element against its parent element
  $( '.some-element' ).center({
    against : 'parent',
    top     : 10
  });

  // centralize .some-element against '.some-target-element'
  // !IMPORTANT '.some-target-element' must be ".some-element"'s parents
  $( '.some-element' ).center({
    against       : '.some-target-element',
    topPercentage : 0.4
  });

License

The expandable plugin is licensed under the MIT License (LICENSE.txt).

Copyright (c) 2011 Ben Lin