title: Simple_form with Bootstrap: create 2 inline fields in a horizontal form
body: <p>I am trying to create 2 inline fields (minimum age and maximum age fields) in a generally horizontal form but nothing is working. </p>
  
  <pre><code>=simple_form_for([:admin, @group], :html =&gt; {:class =&gt; 'form-horizontal', :remote =&gt; true },  wrapper: :horizontal_form, wrapper_mappings: {check_boxes: :horizontal_radio_and_checkboxes, radio_buttons: :horizontal_radio_and_checkboxes, file: :horizontal_file_input, boolean: :horizontal_boolean}, ) do |f|
    =f.input :title
    =f.input :desc, :label =&gt; "Description"
    =f.input :minimum_age,:wrapper_html =&gt; { :style =&gt; 'display: inline !important' }
    =f.input :maximum_age, :wrapper_html =&gt; { :style =&gt; 'display: inline !important' }
    =f.input :include_null_birthday, as: :radio_buttons, label_html: {data: {toggle: "tooltip", title: "Some comment.", placement: "right"}}, label: "Include people with no birthday set [?]"
  </code></pre>
  
  <p>Does anyone know how this can be done?</p>