fixing it on firefox

90/index.html

@@ -54,6 +54,7 @@
 		</footer>
 
 		<script type="text/javascript" src="../src/main.js" defer></script>
+		
 		<script>
 		  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
 		  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),

src/main.js

@@ -141,7 +141,7 @@ function loadMarkdown(){
 	} else {
 		mdText = fetchHTTP("README.md");
 	}
-	content.innerHTML = marked(mdText);
+	document.getElementById('content').innerHTML = marked(mdText);
 
     // parse CODE & CANVAS boxes
 	var ccList = document.querySelectorAll(".codeAndCanvas");