Even though psd2css Online takes static PSD files as input, you can still use it with a little editing to get HTML/CSS web pages that expand with your dynamic content. Here is a new video tutorial that shows how.
The PSD file in the tutorial is available here:
http://psd2cssonline.com/tutorials/grow2/Grow2.psd
and the generated and modified page can be viewed here:
http://psd2cssonline.com/tutorials/grow2/index.html
video for Expanding Sections for Dynamic Text
the quality of this video is so bad.... we can't see everything clearly....
Reply to above
The quality of the video IS fairly bad but, if you download his PSD file and refer to the page he built; You should be able to duplicate everything properly.
I've created a page without using the video. Also, if you're using Gimp don't frustrate yourself by forgetting to crop your layers.