Append/prepend bootstrap icons with simple_form

Question

Twitter Bootstrap icons are pretty deadly seen here.

Look at the bottom right hand corner of that section. See that email with an icon prepended? That is what I want to

Answer 1

It's due to whitespace between the rendered input and span elements. In this case, a line break.

I am not familiar enough with HAML to tell you how to eliminate the whitespace, but the equivalent ERB would go something like:

<%= f.input :email, :wrapper => :append do %>
  <%= f.input_field :email %>
<% end %>