Consider this:

```
h1 { color: red; color: blue }

```

Or, a more complex example (taken from a SVG file, stroke is twice):

```
style="fill:none;stroke:#ffffff;stroke-width:20;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none;stroke:#555555"

```

It *seems* that the answer is “it’s legal, the last assignment wins”, but I’d really like to know: Is there something written in the [CSS specification](http://www.w3.org/TR/CSS21/) about this topic?