Add support to error style

app/models/article.rb

@@ -1,2 +1,3 @@
 class Article < ActiveRecord::Base
+  validates_presence_of :name
 end

config/initializers/simple_form.rb

@@ -4,13 +4,13 @@
   # You can remove any component from the wrapper, change the order or even
   # add your own to the stack. The options given to the wrappers method
   # are used to wrap the whole input (if any exists).
-  config.wrappers :class => 'input clearfix', :error_class => :field_with_errors do |b|
+  config.wrappers :class => 'clearfix', :error_class => :error do |b|
     b.use :placeholder
     b.use :label
     b.use :tag => 'div', :class => 'input' do |ba|
       ba.use :input #, :class => 'xlarge'
       ba.use :hint,  :tag => :span, :class => :hint
-      ba.use :error, :tag => :span, :class => :error
+      ba.use :error, :tag => :span, :class => 'help-inline'
     end
   end
 
@@ -52,7 +52,7 @@
 
   # Tell browsers whether to use default HTML5 validations (novalidate option).
   # Default is enabled.
-  # config.browser_validations = true
+  config.browser_validations = false
 
   # Determines whether HTML5 types (:email, :url, :search, :tel) and attributes
   # (e.g. required) are used or not. True by default.