I found this gem at 456 Berea St.
This bit of code is for custom CSS boxes. The box will expand to contain any amount of content vertically, it will handle any text size, and it can become very wide before the horizontal borders start breaking up. The actual width depends on the width of one of the background images. Be sure to read the article to find out the specifics of how to use it and to download the code. Click here for more info.