diff --git a/indra/assemblers/html/templates/indra/inheritence.md b/indra/assemblers/html/templates/indra/inheritence.md
new file mode 100644
index 0000000000..f7008f5871
--- /dev/null
+++ b/indra/assemblers/html/templates/indra/inheritence.md
@@ -0,0 +1,20 @@
+The file template.html in this directory is template base for several files. See
+the diagram below for the inheritance structure. If you make changes to
+template.html, be sure to check all the files that inherit from it to make sure
+they still work as expected.
+
+These files are currently in active use, however there are more files that
+inherit from template.html that are not currently in use.
+- search.html is the template used for https://db.indra.bio
+- search_statements.html is the template used for https://db.indra.bio/statements
+- statements_view.html is the template used in the HtmlAssembler class in indra.
+- idbr_statements_view.html is the template used for https://db.indra.bio/statements/from...
+
+```mermaid
+graph LR
+    A[indra: template.html] --> B[indra_db: idbr_template.html]
+    A --> C[indra: statements_view.html - serves HtmlAssembler]
+    C --> D[indra_db: idbr_statements_view.html - serves db.indra.bio/statements/from...]
+    B --> E[indra_db: search.html - serves db.indra.bio]
+    B --> F[indra_db: search_statements.html - serves db.indra.bio/statements search]
+```
diff --git a/indra/assemblers/html/templates/indra/template.html b/indra/assemblers/html/templates/indra/template.html
index ad62ca5cce..145c5222de 100644
--- a/indra/assemblers/html/templates/indra/template.html
+++ b/indra/assemblers/html/templates/indra/template.html
@@ -103,6 +103,9 @@
             margin-bottom: 0;
         }
 
+        {% block mid_right_styles %}
+        {% endblock %}
+
         .right {
             width: 20em;                /* Sidebar width */
             right: 0;
@@ -160,6 +163,7 @@
           padding-bottom: 65px
         }
 
+        {% block layout_media_queries %}
         @media (max-width: 1800px) {
           .right {
             width: 15%;
@@ -191,6 +195,8 @@
           .footer {
               right: 0em;
           }
+        }
+        {% endblock %}
         {% endif %}
     </style>
 
@@ -230,7 +236,7 @@
 {% endif %}
 
 <!-- THE MAIN BODY -->
-<main role="main" class="container">
+<main role="main" class="{{ main_tag_class|default('container') }}">
 
   {% if simple %}
     <!-- THE SIMPLE HEADING -->
@@ -259,6 +265,8 @@ <h2>{{ title }}</h2>
   </div>
 </footer>
 
+{% block mid_right_panel %}
+{% endblock %}
 
 <!-- THE RIGHT SIDEBAR -->
 <div class="side-info right bg-white" id="right-side-panel">
@@ -301,6 +309,8 @@ <h4>{{ category|capitalize }}</h4>
       {% endfor %}
     </div>
   {% endfor %}
+  {% block right_sidebar_extra %}
+  {% endblock %}
 </div>
 {% endif %}
 </body>
diff --git a/indra/assemblers/indranet/assembler.py b/indra/assemblers/indranet/assembler.py
index 66f13d1b1e..3502260568 100644
--- a/indra/assemblers/indranet/assembler.py
+++ b/indra/assemblers/indranet/assembler.py
@@ -592,10 +592,10 @@ def statement_to_rows(stmt, exclude_stmts=None, complex_members=3,
             pos = None
         # Create a simple flat list of just the values instead
         # of a dict with keys
-        statemet_hash = stmt.get_hash(refresh=True)
+        statement_hash = stmt.get_hash(refresh=True)
         if source_counts:
-            evidence_count = sum(source_counts.get(statemet_hash, {}).values())
-            source_count = source_counts.get(statemet_hash, {})
+            evidence_count = sum(source_counts.get(statement_hash, {}).values())
+            source_count = source_counts.get(statement_hash, {})
         else:
             evidence_count = len(stmt.evidence)
             source_count = _get_source_counts(stmt)
@@ -610,7 +610,7 @@ def statement_to_rows(stmt, exclude_stmts=None, complex_members=3,
             pos,
             stmt_type,
             evidence_count,
-            statemet_hash,
+            statement_hash,
             stmt.belief,
             source_count,
             sign