Small color fix to nav button

Change button hover border/backgr colors

index.html

@@ -16,11 +16,15 @@
 		.list-group-item {
 			padding: 5px 10px 5px 10px;
 		}
-		.nav button {
+		.nav .btn {
 			color: #fff;
 			background-color: #474949;
 			border-color: #323333;
 		}
+		.nav .btn-default:hover, .nav .btn-default:focus, .nav .btn-default:active, .nav .btn-default.active {
+			background-color: #3a3c3c;
+			border-color: #2e2f2f;
+		}
 		#signin {
 			width: 100%;
 		}