Syntax highlight custom element like <input-wrapper>

othree · othree · commit 718c54fc986b · 2018-02-07T17:47:37.000+08:00
diff --git a/syntax/html.vim b/syntax/html.vim
@@ -77,6 +77,7 @@ syn keyword htmlTagName contained uplimit variance vector vectorproduct xor
 
 " Custom Element
 syn match htmlTagName contained "\<[a-z][-.0-9_a-z]*-[-.0-9_a-z]*\>"
+syn match htmlTagName contained "[.0-9_a-z]\@<=-[-.0-9_a-z]*\>"
 
 " HTML 5 arguments
 " Core Attributes
