PluginIE7

PluginIE7 is a JavaScript library to make IE behave like a standards-compliant browser. It fixes many CSS issues and makes transparent PNG work correctly under IE5 and IE6.

This is an attempt to make Microsoft Internet Explorer more compliant when it comes to web standards. Web developers are becoming increasingly frustrated at the lack of convergence of the major browser vendors. We need a level playing field! CSS is a powerful technology. Many of its more advanced features go unused by web developers because of Explorer’s poor support of CSS standards. IE7 provides support for most of the important CSS enhancements. A full list is available on the compatibility page.
IE7 provides Microsoft Internet Explorer with support for W3C standard CSS and HTML:
* supports the following CSS selectors:
o namespace|selector
o parent > child
o adjacent sibling
o adjacent ~ sibling
o [attr], [attr="value"], [attr~="value"] etc
o .multiple.classes (fixes bug)
o :hover, :active, :focus (for all elements)
o :first-child, :last-child, only-child, nth-child, nth-last-child
o :check, :disabled, :enabled
o :root, :empty, :contains(), :not()
o :before/:after/content:
o :lang()
* works with both HTML and XML documents
* supports imported style sheets
* preserves the cascade of the style sheet
* does not alter the document structure
* does not repeatedly query the DOM tree using JavaScript
* uses pure CSS to enforce style sheet rules
* supports the W3C box model in both standards and quirks mode
* supports fixed positioning (flicker free)
* supports overflow:visible
* supports min/max-width/height
* fixes broken (X)HTML elements (abbr, object)
* standardies forms behavior
* supports PNG alpha transparency
* lightweight script (22K)
* completely modular (add/remove fixes)
* works for Microsoft Internet Explorer 5 (Windows only)