diff --git a/README.md b/README.md
index 112110d..7e63b85 100644
--- a/README.md
+++ b/README.md
@@ -69,8 +69,8 @@ defaults = {
 };
 ```
 
-- `size` : size of switch element, can be `default` | `small` | `large`
-- `checked` : state of switch and checbox, if `undefined` the switch state according to the checkbox 
+- `size` : the size of a switch element, can be default | small | large
+- `checked` : state of switch and checkbox, if undefined the switch state according to the checkbox
 - `onText` :  text in the jack when switch ON
 - `offText` : text in the jack when switch OFF
 - `onSwitchColor` : color of checked switch element
diff --git a/index.html b/index.html
index 086754b..1f6d98f 100644
--- a/index.html
+++ b/index.html
@@ -125,12 +125,13 @@ <h4 class="demo-box-title">color</h4>
             <input type="checkbox" class="demo-color-1" />
         </div>
     </div>
-    
+
     <div class="demo-box">
         <h4 class="demo-box-title">Predefined Classes</h4>
         <div class="demo-box-content">
             <pre>
             <code>
+
                 &lt;input type="checkbox" class="switch-primary" /&gt;<br>
                 &lt;input type="checkbox" class="switch-success" /&gt;<br>
                 &lt;input type="checkbox" class="switch-danger" /&gt;<br>
@@ -296,6 +297,7 @@ <h4 class="demo-box-title">remove</h4>
     };
 
     Object.keys(switchConfig).forEach(function (key) {
+        console.log(document.querySelector('.' + key));
         switches[key] = new Switch(document.querySelector('.' + key),switchConfig[key]);
     });