Issue with stylizing Rails form - ruby-on-rails

Question

I found a custom form style i want to copy. however, it's hard for me to figure out how to integrate the rails into its style since it is much more complicated than examples I've been
able to find.
Specifically, I don't know how to call the specific classes the example uses in my rails app.
I would greatly appreciate some guidance on how to create my rails form in this style:

Answer 1

Basically, you need to do something like:
<%= form_for #listing, html: { class:'form-inline lead-big'} do |f| %>
<div class='form-group'>
</div>
<% end %>
and then in between the .form-group div, you can either use the same code that is provided on the Bootsnipp page, or you can use Rails Form Helpers.
So instead of this:
<div class="form-group">
<label for="name">Hello, I am <span>Your name</span></label>
<input type="text" id="name" placeholder="#maridlcrmn" required>
and
</div>
it could be:
<div class="form-group">
<%= f.label :name do %>
Hello, I am <span>Your name</span>
<% end %>
<%= f.text_field :name, id: "name", placeholder: "#maridlcrmn", required: true %>
and
</div>
See this page for more: http://guides.rubyonrails.org/form_helpers.html

Answer 2

Really cool form I must add!
Depends if you want to do the form for a model or just submitting info. If for mode, use form_for if to submit form_tag
<%= form_tag some_url_path, method: :get do %>
<div class="form-group">
<%= label_tag :name, raw("Hello, I am <span> Your name </span>")%>
<%= text_field_tag :name%>
and
</div>
...
<%end%>