diff --git a/app/models/quantity.rb b/app/models/quantity.rb
index a56f2aa..748a3c6 100644
--- a/app/models/quantity.rb
+++ b/app/models/quantity.rb
@@ -5,7 +5,7 @@ class Quantity < ActiveRecord::Base
     exercise: 2
   }
 
-  acts_as_nested_set dependent: :nullify, scope: :project
+  acts_as_nested_set dependent: :destroy, scope: :project
   belongs_to :project, required: false
 
   validates :name, presence: true, uniqueness: {scope: :project_id}
diff --git a/app/views/ingredients/index.html.erb b/app/views/ingredients/index.html.erb
index ee65e43..aa317b7 100644
--- a/app/views/ingredients/index.html.erb
+++ b/app/views/ingredients/index.html.erb
@@ -64,13 +64,13 @@
         <% next if i.new_record? %>
         <tr id="ingredient-<%= i.id %>" class="ingredient <%= 'hidden' if i.hidden %>">
           <td class="name"><%= i.name %></td>
-          <td class="reference"><%= i.ref_amount %> [<%= i.ref_unit.shortname %>]</td>
+          <td class="reference value"><%= i.ref_amount %> [<%= i.ref_unit.shortname %>]</td>
           <td class="group"><%= i.group %></td>
           <td class="source">
             <%= i.source.name if i.source.present? %>
             <%= ", #{i.source_ident}" if i.source_ident.present? %>
           </td>
-          <td><%= delete_link ingredient_path(i), data: {} %></td>
+          <td class="action"><%= delete_link ingredient_path(i), data: {} %></td>
         </tr>
       <% end %>
     </tbody>
diff --git a/app/views/quantities/index.html.erb b/app/views/quantities/index.html.erb
index f56f508..f9f8d37 100644
--- a/app/views/quantities/index.html.erb
+++ b/app/views/quantities/index.html.erb
@@ -35,13 +35,17 @@
     </thead>
     <tbody>
         <% Quantity.each_with_level(@quantities) do |q, level| %>
-          <% next if q.new_record? %>
-          <tr id="quantity-<%= q.id %>"
-              class="quantity <%= "project idnt idnt-#{level}" if level > 0 %>">
+          <%
+            next if q.new_record?
+            quantity_class = "quantity"
+            quantity_class += " project idnt idnt-#{level}" if level > 0
+            quantity_class += " primary" if q.primary
+          %>
+          <tr id="quantity-<%= q.id %>" class="<%= quantity_class %>">
             <td class="name"><span><%= q.name %></span></td>
             <td class="domain"><%= q.domain %></td>
             <td class="description"><%= q.description %></td>
-            <td><%= delete_link quantity_path(q), data: {} %></td>
+            <td class="action"><%= delete_link quantity_path(q), data: {} %></td>
           </tr>
         <% end %>
     </tbody>
diff --git a/app/views/sources/index.html.erb b/app/views/sources/index.html.erb
index c024a01..fef940a 100644
--- a/app/views/sources/index.html.erb
+++ b/app/views/sources/index.html.erb
@@ -38,7 +38,7 @@
         <tr id="source-<%= s.id %>" class="source">
           <td class="name"><%= s.name %></td>
           <td class="description"><%= s.description %></td>
-          <td><%= delete_link source_path(s), data: {} %></td>
+          <td class="action"><%= delete_link source_path(s), data: {} %></td>
         </tr>
       <% end %>
     </tbody>
diff --git a/app/views/units/index.html.erb b/app/views/units/index.html.erb
index f8d7aa2..bde47ad 100644
--- a/app/views/units/index.html.erb
+++ b/app/views/units/index.html.erb
@@ -38,7 +38,7 @@
         <tr id="unit-<%= u.id %>" class="unit">
           <td class="shortname"><%= u.shortname %></td>
           <td class="unitname"><%= u.name %></td>
-          <td><%= delete_link unit_path(u), data: {} %></td>
+          <td class="action"><%= delete_link unit_path(u), data: {} %></td>
         </tr>
       <% end %>
     </tbody>
diff --git a/assets/stylesheets/body_tracking.css b/assets/stylesheets/body_tracking.css
index 2abcd23..df6123e 100644
--- a/assets/stylesheets/body_tracking.css
+++ b/assets/stylesheets/body_tracking.css
@@ -1 +1,3 @@
-table.nutrients td.value {text-align:right;}
+table.list tr.quantity.primary td.name {font-weight: bold;}
+table.list td.action,
+table.list td.value {text-align: right;}