app/views/devise/registrations/new.html.erb
<head>
<link href='https://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'>
<%= stylesheet_link_tag "devise/new_style.css" %>
</head>
<body>
<div id=container>
<div id=header>Sign up</div>
<div id="flash"><% if flash[:notice] %><div class="notice"><%= flash[:notice] %></div><% end %></div>
<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
<%= devise_error_messages! %>
<div class="field">
<%= f.label :email %><br />
<%= f.email_field :email, autofocus: true %>
</div>
<div class="field">
<%= f.label :username %><br />
<%= f.text_field :username %>
</div>
<div class="field">
<%= f.label :password %>
<% if @minimum_password_length %>
<em>(<%= @minimum_password_length %> characters minimum)</em>
<% end %><br />
<%= f.password_field :password, autocomplete: "off" %>
</div>
<div class="field">
<%= f.label :password_confirmation %><br />
<%= f.password_field :password_confirmation, autocomplete: "off" %>
</div>
<div class="actions">
<%= f.submit "Sign up", id: "submit" %>
</div>
<% end %>
<%= render "devise/shared/links" %>
</div>
</body>