fix: "-" css properties work

fix #2

Author: mouse484

src/index.ts

@@ -2,6 +2,8 @@ import type { Properties } from 'csstype';
 
 const style = (node: HTMLElement, parameters: Properties<string | number>) => {
   Object.entries(parameters).forEach(([key, value]) => {
+    key = key.replace(/[A-Z]/, (substring) => '-' + substring.toLowerCase());
+
     node.style.setProperty(key, value);
   });
 };