diff --git a/public/index.html b/public/index.html
index 3a3d378..60fbefd 100644
--- a/public/index.html
+++ b/public/index.html
@@ -8,14 +8,14 @@
     <body style="height: 100%; margin: 0px;">
         <app id="app">
             <div class="row">
-				<div class="col-4"></div>
-				<div class="col-4 text-center">
-					<div style="height: 250px;"></div>
-					<i class="fa fa-spinner fa-spin"></i>
-					Loading mtweb: <b id="loading-msg">initializing...</b>
-				</div>
-				<div class="col-4"></div>
-			</div>
+                <div class="col-4"></div>
+                <div class="col-4 text-center">
+                    <div style="height: 250px;"></div>
+                    <i class="fa fa-spinner fa-spin"></i>
+                    Loading mtweb: <b id="loading-msg">initializing...</b>
+                </div>
+                <div class="col-4"></div>
+            </div>
         </app>
         <canvas id="canvas" style="width: 100%; height: 100%; display: none;"></canvas>
         <script src="node_modules/vue/dist/vue.global.js"></script>
