Update script.js

Co-Authored-By: JehanKandy  <jehankandy@gmail.com>

Author: BackendExpert

js/script.js

@@ -1,7 +1,10 @@
 function runCode(){
-    const codeHtml = document.getElementById('for-html');
-    const codeCss = document.getElementById('for-css');
-    const codeJS = document.getElementById('for-js');
+    const codeHtml = document.getElementById('for-html').value;
+    const codeCss = document.getElementById('for-css').value;
+    const codeJS = document.getElementById('for-js').value;
     const codeResult = document.getElementById('result-code');
+
+    codeResult.contentDocument.body.innerHTML = codeHtml+"<style>"+codeCss+"</style>";
+    codeResult.contentWindow.eval(codeJS);
 
 }