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diff --git a/syntax/html/aria.vim b/syntax/html/aria.vim
new file mode 100644
index 00000000..68793b23
--- /dev/null
+++ b/syntax/html/aria.vim
@@ -0,0 +1,79 @@
+if polyglot#init#is_disabled(expand('<sfile>:p'), 'html5', 'syntax/html/aria.vim')
+  finish
+endif
+
+" Vim syntax file
+" Language:     WAI-ARIA
+" Maintainer:  	othree <othree@gmail.com>
+" URL:          https://github.com/othree/html5.vim
+" Last Change:  2017-03-07
+" License:      MIT
+" Changes:      update to Candidate Recommendation 27 October 2016
+
+" WAI-ARIA States and Properties
+" https://www.w3.org/TR/wai-aria-1.1/#states_and_properties
+syn keyword  htmlArg contained role
+
+" Global States and Properties
+syn keyword  htmlArg contained aria-atomic aria-busy aria-controls aria-describedby
+syn keyword  htmlArg contained aria-disabled aria-dropeffect aria-flowto aria-grabbed
+syn keyword  htmlArg contained aria-haspopup aria-hidden aria-invalid aria-label
+syn keyword  htmlArg contained aria-labelledby aria-live aria-owns aria-relevant
+" 1.1
+syn keyword  htmlArg contained aria-current aria-details aria-keyshortcuts aria-roledescription
+
+" Widget Attributes
+syn keyword  htmlArg contained aria-autocomplete aria-checked aria-disabled aria-expanded
+syn keyword  htmlArg contained aria-haspopup aria-hidden aria-invalid aria-label
+syn keyword  htmlArg contained aria-level aria-multiline aria-multiselectable aria-orientation
+syn keyword  htmlArg contained aria-pressed aria-readonly aria-required aria-selected
+syn keyword  htmlArg contained aria-sort aria-valuemax aria-valuemin aria-valuenow aria-valuetext
+" 1.1
+syn keyword  htmlArg contained aria-errormessage aria-hasgroup aria-modal aria-placeholder
+
+" Live Region Attributes
+syn keyword  htmlArg contained aria-atomic aria-busy aria-live aria-relevant
+
+" Drag-and-Drop attributes
+syn keyword  htmlArg contained aria-dropeffect aria-grabbed
+
+" Relationship Attributes
+syn keyword  htmlArg contained aria-activedescendant aria-controls aria-describedby aria-flowto
+syn keyword  htmlArg contained aria-labelledby aria-owns aria-posinset aria-setsize
+" 1.1
+syn keyword  htmlArg contained aria-colcount aria-colindex aria-colspan
+syn keyword  htmlArg contained aria-rowcount aria-rowindex aria-rowspan
+
+
+" Use match: https://github.com/othree/html5.vim/issues/39
+
+" Global States and Properties
+syn match    htmlArg contained "\<aria-\%(\|atomic\|busy\|controls\|describedby\)\>"
+syn match    htmlArg contained "\<aria-\%(\|disabled\|dropeffect\|flowto\|grabbed\)\>"
+syn match    htmlArg contained "\<aria-\%(\|haspopup\|hidden\|invalid\|label\)\>"
+syn match    htmlArg contained "\<aria-\%(\|labelledby\|live\|owns\|relevant\)\>"
+" 1.1
+syn match    htmlArg contained "\<aria-\%(\|current\|details\|keyshortcuts\|roledescription\)\>"
+
+" Widget Attributes
+syn match    htmlArg contained "\<aria-\%(\|autocomplete\|checked\|disabled\|expanded\)\>"
+syn match    htmlArg contained "\<aria-\%(\|haspopup\|hidden\|invalid\|label\)\>"
+syn match    htmlArg contained "\<aria-\%(\|level\|multiline\|multiselectable\|orientation\)\>"
+syn match    htmlArg contained "\<aria-\%(\|pressed\|readonly\|required\|selected\)\>"
+syn match    htmlArg contained "\<aria-\%(\|sort\|valuemax\|valuemin\|valuenow\|valuetext\)\>"
+" 1.1
+syn match    htmlArg contained "\<aria-\%(\|errormessage\|hasgroup\|modal\|placeholder\)\>"
+
+" Live Region Attributes
+syn match    htmlArg contained "\<aria-\%(\|atomic\|busy\|live\|relevant\)\>"
+
+" Drag-and-Drop attributes
+syn match    htmlArg contained "\<aria-\%(\|dropeffect\|grabbed\)\>"
+
+" Relationship Attributes
+syn match    htmlArg contained "\<aria-\%(\|activedescendant\|controls\|describedby\|flowto\)\>"
+syn match    htmlArg contained "\<aria-\%(\|labelledby\|owns\|posinset\|setsize\)\>"
+" 1.1
+syn match    htmlArg contained "\<aria-\%(\|colcount\|colindex\|colspan\)\>"
+syn match    htmlArg contained "\<aria-\%(\|rowcount\|rowindex\|rowspan\)\>"
+