fix require in the only way I know that works at runtime

types/jotform-css.js/index.d.ts

@@ -2,6 +2,7 @@
 // Project: https://github.com/jotform/css.js
 // Definitions by: Peter van der Woude <https://github.com/pandawood>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
 /// <reference types="node" />
 
 /**

types/jotform-css.js/jotform-css.js-tests.ts

@@ -1,10 +1,10 @@
-import cssjsGlobal = require("../jotform-css.js")
+let cssjsGlobal = require("jotform-css.js")
 import { CssJs } from "./index"
 
 // not all interface methods tested here, below is a sample of code that I've actually used
 class TestParser {
 	public parse(cssString: string): string {
-		const parser = new (<any>cssjsGlobal).cssjs() as CssJs
+		const parser = new cssjsGlobal.cssjs() as CssJs
 
 		let parsed = parser.parseCSS(cssString)
 		parsed = parser.applyNamespacing(parsed, "#id1")