CSS offers a number of powerful features that can be tricky to use, or have a number of parameters, so that it's helpful to be able to visualize them while you work on them. This page offers links to a number of useful tools that will help you build the CSS to style your content using these features.

Cubic Bezier Generator
This is a sample tool; it lets you edit Bezier curves. This is not really yet a useful tool, but will be!
Linear-gradient Generator
This tool can be used to create custom CSS3 linear-gradient() backgrounds.

Other tools

See also