title: Changing simple_form date input to have three string inputs instead of three drop down menus
body: <p>I'm using simple_form gem on a form, and want to use date fields with three text_fields fields instead of three select fields.</p>
  
  <p>I tried this:</p>
  
  <pre><code>&lt;%= profile_form.simple_fields_for :birthday do |date| %&gt;
    &lt;%= date.input :day, :as =&gt; :string, :label =&gt; "Dia", :input_html =&gt; { :maxlength =&gt; 2 } %&gt;
    &lt;%= date.input :month, :as =&gt; :string, :label =&gt; "Mês", :input_html =&gt; { :maxlength =&gt; 2 } %&gt;
    &lt;%= date.input :year, :as =&gt; :string, :label =&gt; "Ano", :input_html =&gt; { :maxlength =&gt; 4 } %&gt;
  &lt;%- end -%&gt;
  </code></pre>
  
  <p>But that creates three div's, three labels and it's a mess.
  The ideal scenario was to have one label and three string fields in line.</p>
  
  <p>Any ideas how I can create that custom input?</p>