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diff --git a/autoload/filetype/html.kak b/autoload/filetype/html.kak
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+# http://w3.org/html
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufCreate .*\.html %{
+    set-option buffer filetype html
+}
+
+hook global BufCreate .*\.xml %{
+    set-option buffer filetype xml
+}
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook global WinSetOption filetype=(html|xml) %{
+    require-module html
+
+    hook window ModeChange pop:insert:.* -group "%val{hook_param_capture_1}-trim-indent"  html-trim-indent
+    hook window InsertChar '>' -group "%val{hook_param_capture_1}-indent" html-indent-on-greater-than
+    hook window InsertChar \n -group "%val{hook_param_capture_1}-indent" html-indent-on-new-line
+
+    hook -once -always window WinSetOption "filetype=.*" "
+        remove-hooks window ""%val{hook_param_capture_1}-.+""
+    "
+}
+
+hook -group html-highlight global WinSetOption filetype=(html|xml) %{
+    add-highlighter "window/%val{hook_param_capture_1}" ref html
+    hook -once -always window WinSetOption "filetype=.*" "
+        remove-highlighter ""window/%val{hook_param_capture_1}""
+    "
+}
+
+
+provide-module html %[
+
+try %{
+    require-module css
+    require-module javascript
+}
+
+# Highlighters
+# ‾‾‾‾‾‾‾‾‾‾‾‾
+
+add-highlighter shared/html regions
+add-highlighter shared/html/comment region <!--     -->                  fill comment
+add-highlighter shared/html/tag     region <          >                  regions
+add-highlighter shared/html/style   region <style\b.*?>\K  (?=</style>)  ref css
+add-highlighter shared/html/script  region <script\b.*?>\K (?=</script>) ref javascript
+
+add-highlighter shared/html/tag/base default-region group
+add-highlighter shared/html/tag/ region '"' (?<!\\)(\\\\)*"      fill string
+add-highlighter shared/html/tag/ region "'" "'"                  fill string
+
+add-highlighter shared/html/tag/base/ regex \b([a-zA-Z0-9_-]+)=? 1:attribute
+add-highlighter shared/html/tag/base/ regex </?(\w+) 1:keyword
+add-highlighter shared/html/tag/base/ regex <(!DOCTYPE(\h+\w+)+) 1:meta
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+define-command -hidden html-trim-indent %{
+    # remove trailing white spaces
+    try %{ execute-keys -draft -itersel x s \h+$ <ret> d }
+}
+
+define-command -hidden html-indent-on-greater-than %[
+    evaluate-commands -draft -itersel %[
+        # align closing tag to opening when alone on a line
+        try %[ execute-keys -draft , <a-h> s ^\h+<lt>/(\w+)<gt>$ <ret> {c<lt><c-r>1,<lt>/<c-r>1<gt> <ret> s \A|.\z <ret> 1<a-&> ]
+    ]
+]
+
+define-command -hidden html-indent-on-new-line %{
+    evaluate-commands -draft -itersel %{
+        # preserve previous line indent
+        try %{ execute-keys -draft <semicolon> K <a-&> }
+        # filter previous line
+        try %{ execute-keys -draft k : html-trim-indent <ret> }
+        # indent after lines ending with opening tag except when it starts with a closing tag
+        try %{ execute-keys -draft k x <a-k> <lt>(?!area)(?!base)(?!br)(?!col)(?!command)(?!embed)(?!hr)(?!img)(?!input)(?!keygen)(?!link)(?!menuitem)(?!meta)(?!param)(?!source)(?!track)(?!wbr)(?!/)(?!>)[a-zA-Z0-9_-]+[^>]*?>$ <ret>jx<a-K>^\s*<lt>/<ret><a-gt> } }
+}
+
+]