Single element
Expression: `.body a:hover`. No commas here.
We allow nested declarations
The type of CSS fragment
Print CSS to a string suitable for rendering
string
transform a fragment with nested declarations into an equivalent fragment with only root declarations
Emit a CSS gradient style that linearly interpolates between the low and high colors
low
high
Emit a border style that rounds off the top border by 0.5em pixels.
0.5em
Emit a border style that rounds off the bottom border by 0.5em pixels.
Emit a border style that rounds off all the borders by 0.5em pixels.