diff --git a/affinity/assets/stylesheets/shared/_normalize.scss b/affinity/assets/stylesheets/shared/_normalize.scss
index 99536b1e23..ed2b9ca1fd 100644
--- a/affinity/assets/stylesheets/shared/_normalize.scss
+++ b/affinity/assets/stylesheets/shared/_normalize.scss
@@ -18,8 +18,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/affinity/style.css b/affinity/style.css
index 8c8c60d6fd..4c28872679 100644
--- a/affinity/style.css
+++ b/affinity/style.css
@@ -67,8 +67,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
   display: block;
 }
 
diff --git a/altofocus/assets/stylesheets/shared/_normalize.scss b/altofocus/assets/stylesheets/shared/_normalize.scss
index 95bd18b1b0..141ee0809e 100644
--- a/altofocus/assets/stylesheets/shared/_normalize.scss
+++ b/altofocus/assets/stylesheets/shared/_normalize.scss
@@ -18,8 +18,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/altofocus/style.css b/altofocus/style.css
index 45fa141cf2..4209c4dd9b 100644
--- a/altofocus/style.css
+++ b/altofocus/style.css
@@ -741,8 +741,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
   display: block;
 }
 
diff --git a/apostrophe-2/style.css b/apostrophe-2/style.css
index 1d81c03bf8..95b813330f 100644
--- a/apostrophe-2/style.css
+++ b/apostrophe-2/style.css
@@ -154,8 +154,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/button-2/style.css b/button-2/style.css
index 25a8c2e25c..8050230fa8 100644
--- a/button-2/style.css
+++ b/button-2/style.css
@@ -66,8 +66,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/canard/style.css b/canard/style.css
index 2a3914ea94..47fec73b7e 100644
--- a/canard/style.css
+++ b/canard/style.css
@@ -92,8 +92,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 audio,
diff --git a/dyad-2/editor-style.css b/dyad-2/editor-style.css
index 4f41abd5c6..336626f057 100644
--- a/dyad-2/editor-style.css
+++ b/dyad-2/editor-style.css
@@ -22,8 +22,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/dyad-2/style.css b/dyad-2/style.css
index ddd819f8a5..c383beb80c 100644
--- a/dyad-2/style.css
+++ b/dyad-2/style.css
@@ -71,8 +71,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/gazette/style.css b/gazette/style.css
index 42ae551c00..acda92a91c 100644
--- a/gazette/style.css
+++ b/gazette/style.css
@@ -89,8 +89,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 audio,
diff --git a/ixion/style.css b/ixion/style.css
index d39802328f..c825665652 100644
--- a/ixion/style.css
+++ b/ixion/style.css
@@ -67,8 +67,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/karuna/assets/stylesheets/shared/_normalize.scss b/karuna/assets/stylesheets/shared/_normalize.scss
index c52531edca..0cc5e5cf90 100644
--- a/karuna/assets/stylesheets/shared/_normalize.scss
+++ b/karuna/assets/stylesheets/shared/_normalize.scss
@@ -18,8 +18,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/karuna/style.css b/karuna/style.css
index 07c5754464..36e72a240b 100644
--- a/karuna/style.css
+++ b/karuna/style.css
@@ -67,8 +67,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/libre-2/style.css b/libre-2/style.css
index dd927a554e..6673937ea5 100644
--- a/libre-2/style.css
+++ b/libre-2/style.css
@@ -67,8 +67,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/lodestar/style.css b/lodestar/style.css
index 80550dfe2f..43cc72d987 100644
--- a/lodestar/style.css
+++ b/lodestar/style.css
@@ -69,8 +69,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/pique/style.css b/pique/style.css
index 4253095217..8107e01c11 100644
--- a/pique/style.css
+++ b/pique/style.css
@@ -68,8 +68,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/publication/style.css b/publication/style.css
index aa7a8d5ed2..cb3bbe5250 100644
--- a/publication/style.css
+++ b/publication/style.css
@@ -90,8 +90,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 audio,
diff --git a/radcliffe-2/style.css b/radcliffe-2/style.css
index d55429d945..3ccd31efa3 100644
--- a/radcliffe-2/style.css
+++ b/radcliffe-2/style.css
@@ -69,8 +69,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/rebalance/style.css b/rebalance/style.css
index 7b7e5cf938..e5eeb567b7 100644
--- a/rebalance/style.css
+++ b/rebalance/style.css
@@ -90,8 +90,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/scratchpad/style.css b/scratchpad/style.css
index a6465f1d20..870408afce 100644
--- a/scratchpad/style.css
+++ b/scratchpad/style.css
@@ -89,8 +89,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/shoreditch/style.css b/shoreditch/style.css
index 2451cda79b..ebcec851f1 100644
--- a/shoreditch/style.css
+++ b/shoreditch/style.css
@@ -94,8 +94,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }
 
diff --git a/textbook/style.css b/textbook/style.css
index ef81d31271..eb10ddfdcb 100644
--- a/textbook/style.css
+++ b/textbook/style.css
@@ -67,8 +67,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
   display: block;
 }
 
diff --git a/toujours/style.css b/toujours/style.css
index ee47004dbf..6613353e62 100644
--- a/toujours/style.css
+++ b/toujours/style.css
@@ -84,8 +84,7 @@ header,
 main,
 menu,
 nav,
-section,
-summary {
+section {
 	display: block;
 }