Add output tag

Author: amadeus

syntax/css.vim

@@ -35,7 +35,7 @@ syntax region cssAtRuleString contained start=/'/ skip=/\\\\\|\\'/ end=/'/ conta
 syntax match cssAtRuleNoise /;/ contained
 syntax match cssPagePseudos contained /:\%(left\|right\|blank\|first\|recto\|verso\)/
 
-syntax match cssTagSelector /\<\%(video\|var\|ul\|u\|tt\|tr\|title\|thead\|th\|tfoot\|textarea\|template\|td\|tbody\|table\|svg\|sup\|summary\|sub\|style\|strong\|strike\|span\|small\|select\|section\|script\|samp\|s\|rect\|q\|progress\|pre\|path\|param\|p\|option\|optgroup\|ol\|noscript\|nav\|meta\|menu\|mark\|map\|main\|link\|li\|legend\|label\|kbd\|isindex\|ins\|input\|img\|iframe\|i\|html\|hr\|hgroup\|header\|head\|h6\|h5\|h4\|h3\|h2\|h1\|g\|form\|footer\|figure\|figcaption\|fieldset\|embed\|em\|dt\|dl\|div\|dfn\|details\|del\|dd\|colgroup\|col\|code\|cite\|circle\|caption\|canvas\|button\|br\|body\|blockquote\|big\|bdo\|base\|b\|audio\|aside\|article\|area\|applet\|address\|acronym\|abbr\|a\|picture\)\>/ nextgroup=@cssSelectors,cssDefinitionBlock skipwhite skipempty
+syntax match cssTagSelector /\<\%(video\|var\|ul\|u\|tt\|tr\|title\|thead\|th\|tfoot\|textarea\|template\|td\|tbody\|table\|svg\|sup\|summary\|sub\|style\|strong\|strike\|span\|small\|select\|section\|script\|samp\|s\|rect\|q\|progress\|pre\|path\|param\|p\|output\|option\|optgroup\|ol\|noscript\|nav\|meta\|menu\|mark\|map\|main\|link\|li\|legend\|label\|kbd\|isindex\|ins\|input\|img\|iframe\|i\|html\|hr\|hgroup\|header\|head\|h6\|h5\|h4\|h3\|h2\|h1\|g\|form\|footer\|figure\|figcaption\|fieldset\|embed\|em\|dt\|dl\|div\|dfn\|details\|del\|dd\|colgroup\|col\|code\|cite\|circle\|caption\|canvas\|button\|br\|body\|blockquote\|big\|bdo\|base\|b\|audio\|aside\|article\|area\|applet\|address\|acronym\|abbr\|a\|picture\)\>/ nextgroup=@cssSelectors,cssDefinitionBlock skipwhite skipempty
 " object has to be pulled out and made a match or else it overrides object-fit property
 syntax match cssTagSelector /object/ nextgroup=@cssSelectors,cssDefinitionBlock skipwhite skipempty