diff --git a/after/syntax/css/html5-elements.vim b/after/syntax/css/html5-elements.vim
index 88f054e..6ccfc9d 100644
--- a/after/syntax/css/html5-elements.vim
+++ b/after/syntax/css/html5-elements.vim
@@ -15,8 +15,5 @@ syn keyword cssTagName embed video audio source track
 " Forms
 syn keyword cssTagName datalist keygen output progress meter
 
-" Interactive elements
-syn keyword cssTagName details summary dialog
-
 " Scripting
 syn keyword cssTagName template canvas
diff --git a/test/test.css b/test/test.css
index b7a71d9..c8810ea 100644
--- a/test/test.css
+++ b/test/test.css
@@ -602,9 +602,6 @@ keygen,
 output,
 progress,
 meter,
-details,
-summary,
-dialog,
 template,
 canvas {
   display: auto;
diff --git a/test/test.html b/test/test.html
index 769eb34..73869aa 100644
--- a/test/test.html
+++ b/test/test.html
@@ -610,9 +610,6 @@
       output,
       progress,
       meter,
-      details,
-      summary,
-      dialog,
       template,
       canvas {
         display: auto;