Fix content about type of style prop

src/routes/concepts/components/class-style.mdx

@@ -22,7 +22,7 @@ To use it, you can pass either a string or an object.
 ```
 
 When using an object, the keys represent the CSS property names, and the values represent the CSS property values.
-The keys must be in dash-case, and the values must be strings.
+The keys must be in dash-case, and the values must be strings or numbers.
 
 <EraserLink
 	href="https://app.eraser.io/workspace/maDvFw5OryuPJOwSLyK9?elements=PgkKTGxuuOtDiQ_1KDA5dw"