The CSS2 Opacity property doesn’t work in the current versions of Internet Explorer - through IE8. However, it has provided a way to achieve similar results with a different method, using IE’s filter property. Javascript frameworks usually work this in for you when you try to set an elements…
IE NetRenderer
IE NetRenderer allows you to check how a website is rendered by Internet Explorer 7, 6 or 5.5, as seen from a high speed datacenter located in Germany. Just type in a URL in the field above and try it out - it’s free!