Fixes #6553: example fix for validation states

docs/templates/pages/base-css.mustache

@@ -1567,6 +1567,7 @@
     <span class="help-inline">{{_i}}Something may have gone wrong{{/i}}</span>
   </div>
 </div>
+
 <div class="control-group error">
   <label class="control-label" for="inputError">{{_i}}Input with error{{/i}}</label>
   <div class="controls">
@@ -1574,6 +1575,15 @@
     <span class="help-inline">{{_i}}Please correct the error{{/i}}</span>
   </div>
 </div>
+
+<div class="control-group info">
+  <label class="control-label" for="inputInfo">{{_i}}Input with info{{/i}}</label>
+  <div class="controls">
+    <input type="text" id="inputInfo">
+    <span class="help-inline">{{_i}}Username is already taken{{/i}}</span>
+  </div>
+</div>
+
 <div class="control-group success">
   <label class="control-label" for="inputSuccess">{{_i}}Input with success{{/i}}</label>
   <div class="controls">