app/views/plates/_pooled_plate.html.erb
<table class="plate-view">
<thead>
<tr>
<th class="first-col"> </th>
<% (1..12).each do |column_number| %>
<th><%= column_number %></th>
<% end %>
</tr>
</thead>
<tbody>
<% walker.each do |row_label, row_wells| %>
<tr>
<th class="first-col"><%= row_label %></th>
<% row_wells.each_with_index do |well, index| %>
<td>
<div id="<%= "well_#{well.location}" %>" class="well">
<% unless transfers[well.location].nil? -%>
<% Array(transfers[well.location]).each do |location| -%>
<div id="<%= "aliquot_#{location}" %>" class="aliquot <%= colours_by_location[location] %>">
<%= location %>
</div>
<% end %>
<% end %>
</div>
</td>
<% end %>
</tr>
<% end %>
</tbody>
</table>