If you learnt to make a website with us, or if you're just picking up HTML and CSS, you may have wanted to learn a few more complex styles. One of the best ways to learn is by looking at other code, and CSS3 Generator can write custom CSS code for you so you can learn how it works (or just use it).
You start out with four sliders and a box. From there you can adjust the box's border radius (meaning how rounded the corners are), its shadow, its opacity, and an overlaid gradient (if you'd like one). These styles are newer and sometimes a bit more complex, as they're implemented a little differently between browsers. By using the generator you can make adjustments and see what they look like, then examine the code and learn from it. It's a fun way to pick up these useful CSS3 techniques quickly.