app/views/sessions/new.html.erb
<div class="container">
<div class="row">
<div class="col-xs-12">
<div class="brand text-center">
<%= image_tag('favicon-194x194.png') %>
</div>
</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-md-6 col-md-offset-3">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="text-center"> Please login to access Home</h4>
</div>
<div class="panel-body">
<fieldset>
<%= simple_form_for(@form, :url => session_path) do |f| %>
<%= f.input :email %>
<%= f.input :password %>
<hr>
<div class="text-center">
<%= f.button :submit, 'Login', class:'btn btn-default', method: :post %>
</div>
<%- end %>
</fieldset>
</div>
</div>
</div>
</div>
</div>