Anyone got a tutorial on how to achieve liquid/fluid design? Is this still popular?
How I get the image to be like this?
That (if you’re willing to look at the source files) is great for learning how to control layout that is dependant on text size (it scales with text size).
As for the image you are looking for, is it the one that repeats the last set of vertical pixels over and over (like it’s smeared across the page?). To do that you just have to create the image (using the one pixel wide vertical selection as a pattern to fill the rest of the image). Then just use that image as a background in the table (or css container, depending on how you are going to do it) that will scale with the page size.
For me, I design a site/page dependant on the content that is going to go in it. My current projects are almost all fixed width, because we either don’t know the content that’s going to go in there, or because the content looks/fits better in fixed width.