diff --git a/docs/assets/styles.css b/docs/assets/styles.css
index 5e4afff..0826106 100644
--- a/docs/assets/styles.css
+++ b/docs/assets/styles.css
@@ -3,7 +3,7 @@
 }
 
 body {
-  font-family: 'Roboto';
+  font-family: 'Roboto' sans-serif;
   font-size: 16px;
 }
 
diff --git a/docs/index.html b/docs/index.html
index 983ae04..4e394a3 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -15,6 +15,16 @@
     
     <link rel="stylesheet" href="assets/tooltip.min.css" />
     <link rel="stylesheet" href="assets/styles.css" />
+
+    <!-- Global site tag (gtag.js) - Google Analytics -->
+    <script async src="https://www.googletagmanager.com/gtag/js?id=G-5L3LVB532V"></script>
+    <script>
+      window.dataLayer = window.dataLayer || [];
+      function gtag(){dataLayer.push(arguments);}
+      gtag('js', new Date());
+
+      gtag('config', 'G-5L3LVB532V');
+    </script>
   </head>
   <body>
     <div id="app"></div>
diff --git a/src/tooltip.js b/src/tooltip.js
index d0fb787..0497034 100755
--- a/src/tooltip.js
+++ b/src/tooltip.js
@@ -23,7 +23,7 @@
     window.tooltipComponentInitiated = true;
   }
 
-  let $body = document.querySelector('body');
+  let $body;
   let $tooltip;
   let $currentEle;
   let options = {};
@@ -31,7 +31,13 @@
   let exitDelayTimeout;
   let hideDurationTimeout;
 
-  addEvents();
+  window.addEventListener('load', initTooltip);
+  
+  function initTooltip() {
+    $body = document.querySelector('body');
+
+    addEvents();
+  }
 
   /** event methods - start */
   function addEvents() {
diff --git a/webpack.config.js b/webpack.config.js
index 901e72b..c9cb76b 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -4,7 +4,7 @@ const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const TerserPlugin = require('terser-webpack-plugin');
 const FileManagerPlugin = require('filemanager-webpack-plugin');
 
-const banner = `Tooltip v1.0.5
+const banner = `Tooltip v1.0.6
 https://sa-si-dev.github.io/tooltip
 Licensed under MIT (https://github.com/sa-si-dev/tooltip/blob/master/LICENSE)`;
 
