How to i get to this syntax from Rails.??

from_foundation_docs.html

<ul class="clearing-thumbs" data-clearing>
  <li><a href="path/to/your/img"><img data-caption="caption here..." src="path/to/your/img-th"></a></li>
  <li><a href="path/to/your/img"><img data-caption="caption 2 here..." src="path/to/your/img-th"></a></li>
  <li><a href="path/to/your/img"><img data-caption="caption 3 here..." src="path/to/your/img-th"></a></li>
</ul>

number 1.html.erb

<%= link_to '#' do %>
  hiii <%= image_tag('/images/menu-arrow-down.gif') %>
<% end %>

number 2.html.erb

<%= link_to '#' %><%= image_tag('/images/menu-arrow-down.gif') %>

number 3.html.erb

<%= link_to image_tag ('/images/menu-arrow-down.gif') '#' %>