Gradients created with CSS Gradient Generator can be copied and pasted as CSS linear-gradient functions, so they can be used as they are for web design.

Gradient feels very polished for only being in beta 2, and it looks like this will be a great tool for web designers looking for a simple yet intuitive way to create CSS gradients. Gradient’s ...

Such is the case with CSS3-powered gradients. To create them by hand you have to program transitions manually. The code generated is a long list of colour definitions and declarations.