Using three layers of alpha transparent PNG files, we can can create a pseudo 3-dimensional looking background for a web page using the parallax effect. This video screencast covers how to do that from start to finish. Since Internet Explorer 6 and under do not support alpha transparency in PNG's, this screencase also covers how to create a warning message that will display only in those web browsers. You'll see how to use TextMate, Adobe Photshop, Safari, and VMware Fusion for your CSS building on the Internet for web pages.
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