diff --git a/great_expectations/render/renderer/other_section_renderer.py b/great_expectations/render/renderer/other_section_renderer.py
index 32d972587460..7598e13459d4 100644
--- a/great_expectations/render/renderer/other_section_renderer.py
+++ b/great_expectations/render/renderer/other_section_renderer.py
@@ -127,7 +127,7 @@ def _render_expectation_types(cls, evrs, content_blocks):
 
         content_blocks.append({
             "content_block_type": "bullet_list",
-            "header": "Expectation types",
+            "header": 'Expectation types <span class="mr-3 triangle"></span>',
             "bullet_list": bullet_list,
             "styling": {
                 "classes": ["col-12"],
@@ -135,10 +135,11 @@ def _render_expectation_types(cls, evrs, content_blocks):
                     "margin-top": "20px"
                 },
                 "header": {
+                    "classes": ["collapsed"],
                     "attributes": {
                         "data-toggle": "collapse",
-                        "href": "#section-1-content-block-5-body",
-                        "aria-expanded": "false",
+                        "href": "#{{content_block_id}}-body",
+                        "aria-expanded": "true",
                         "aria-controls": "collapseExample",
                     },
                     "styles": {
@@ -146,7 +147,7 @@ def _render_expectation_types(cls, evrs, content_blocks):
                     }
                 },
                 "body": {
-                    "classes": ["list-group"],
+                    "classes": ["list-group", "collapse"],
                 },
             },
         })