Water.css is a just-add-css collection of styles to make simple websites like this just a little bit nicer.

‘There are some particular findings that are pivotal to issues such as readership and readability and comprehension, which is really what body copy is all about. If people won’t read it, or if they can’t read it or understand it, then what’s the point of having it?’

How to make an background image scale without using a ton of JavaScript.

This may be worth looking into. I waffle on whether this sort of thing is ultimately a good decision — you're relying on someone else's framework, it takes a while to learn and master, and once you decide to go with it you're essentially stuck with it. But isn't that the case with any pseudo-framework developed for a website design? I should test this on a little project.

As seen on Normative.com.

Intelligently choosing the graceful degradation (size- and style-wise) of your web fonts.

With handy charts.

"A tool for visual layout development of YAML based CSS layouts." YAML stands for Yet Another Multicolumn Layout.

"Striped background generator."

Things always to remember when building a form.

An excellent and highly educational series.

Lots of color tools, including one with helpful color-blindness-simulating utilities.