
((window.gitter = {}).chat = {}).options = {
  room: 'thepracticaldev/1pr',
  useStyles: false
};


function toggleSidebar(){

  sidebar     = document.getElementById("sidebar"),
  mainContent = document.getElementById("main-content");

	if( window.width < 768 ){
		if (sidebar.style.display == 'none') {
			sidebar.style.display = 'block';
			mainContent.style.marginLeft = "200px";
		} else {
			sidebar.style.display = 'none';
			mainContent.style.marginLeft = "0px";
		}
	}
}

@@ -121,18 +121,17 @@
 bar()%7B%0A%0A
-  
+%09
 sidebar 
@@ -172,18 +172,17 @@
 ebar%22),%0A
-  
+%09
 mainCont
@@ -337,51 +337,8 @@
 k';%0A
-%09%09%09mainContent.style.marginLeft = %22200px%22;%0A
 %09%09%7D 
@@ -383,49 +383,8 @@
 e';%0A
-%09%09%09mainContent.style.marginLeft = %220px%22;%0A
 %09%09%7D%0A

Update main.js