Remove css type <fractional>.

docs/css_types/fractional.md

@@ -1,28 +0,0 @@
-# Fractional
-
-## Syntax
-
---8<-- "docs/styles/snippets/fractional_syntax.md"
-
-!!! warning
-
-    Not to be confused with the [percentage](./percentage.md) unit nor with the [scalar](./scalar.md) unit.
-
-## Examples
-
-```css
-Widget {
-    text-opacity: 0.45;
-    text-opacity: 45%;
-}
-```
-
-```py
-widget.styles.text_opacity = 0.45
-widget.styles.text_opacity = "45%"
-```
-
-## Used by
-
- - [`opacity`](../opacity.md)
- - [`text-opacity`](../text_opacity.md)

docs/snippets/fractional_syntax.md

@@ -1,6 +0,0 @@
-A [fractional](/styles/css_units/fractional) value can be set to
-
- - a float between 0 and 1 (e.g., `0.45`); or
- - a percentage between 0% and 100% (e.g., `45%`).
-
-Values outside their ranges will be clamped.