CTAN sync 202310100301

4 files changed, 84 insertions, 148 deletions

diff --git a/support/TeX4ht/source/ChangeLog b/support/TeX4ht/source/ChangeLog
index e56e2545c3..5b65c3b282 100644
--- a/support/TeX4ht/source/ChangeLog
+++ b/support/TeX4ht/source/ChangeLog
@@ -1,3 +1,16 @@
+2023-10-09  Michal Hoftich  <michal.h21@gmail.com>
+
+	* tex4ht-4ht.tex (usepackage-fontspec.4ht): process keyval options
+	from the first optional argument in \newfontfamily.
+	https://tex.stackexchange.com/a/698071/2891
+
+	* tex4ht-html5.tex (html5.4ht): fixed CSS selector for setting size
+	of starred section titles.
+
+	* tex4ht-html4.tex (html4.4ht): removed spurious spaces from TOCs,
+	simplified their formatting using CSS.
+	https://puszcza.gnu.org.ua/bugs/?605
+
 2023-10-04  Michal Hoftich  <michal.h21@gmail.com>
 
 	* tex4ht-mathml.tex (mathml.4ht): removed \mathchoice from
diff --git a/support/TeX4ht/source/tex4ht-4ht.tex b/support/TeX4ht/source/tex4ht-4ht.tex
index 90876bb70a..2374a35fd9 100644
--- a/support/TeX4ht/source/tex4ht-4ht.tex
+++ b/support/TeX4ht/source/tex4ht-4ht.tex
@@ -1,4 +1,4 @@
-% $Id: tex4ht-4ht.tex 1375 2023-10-02 10:40:17Z michal_h21 $
+% $Id: tex4ht-4ht.tex 1381 2023-10-09 21:22:59Z karl $
 % tex tex4ht-4ht   or   ht tex tex4ht-4ht
 %
 % Copyright 2009-2023 TeX Users Group    
@@ -4603,7 +4603,7 @@ The actual configurations which are used when fontspec is loaded:
 
 \<usepackage-fontspec.4ht\><<<
 % usepackage-fontspec.4ht (|version), generated from |jobname.tex
-% Copyright 2017-2020 TeX Users Group
+% Copyright 2017-2023 TeX Users Group
 |<TeX4ht license text|>
 % \RequirePackage{expl3}% we need to disable them before loading
 \ExplSyntaxOn
@@ -4676,6 +4676,7 @@ The actual configurations which are used when fontspec is loaded:
 \DeclareDocumentCommand \newfontfamily { m O{} m O{} }
  {
   % \fontspec_set_family:cnn { g__fontspec_ \cs_to_str:N #1 _family } {#2} {#3}
+  \keys_set_known:nn {fontspec4ht}{#2}
   \keys_set_known:nn {fontspec4ht}{#4}
   \seq_put_right:Nn \fontspec_ht_fontfamilies {#3}
   \use:x
diff --git a/support/TeX4ht/source/tex4ht-html4.tex b/support/TeX4ht/source/tex4ht-html4.tex
index 21e7ea166e..990317494a 100644
--- a/support/TeX4ht/source/tex4ht-html4.tex
+++ b/support/TeX4ht/source/tex4ht-html4.tex
@@ -1,4 +1,4 @@
-% $Id: tex4ht-html4.tex 1372 2023-09-22 15:05:09Z michal_h21 $
+% $Id: tex4ht-html4.tex 1378 2023-10-09 11:33:14Z michal_h21 $
 % Compile 4 times: latex tex4ht-html4
 % Copy html4.4ht into the work directory before all but the last compilation.
 %
@@ -1860,20 +1860,14 @@ should be used whe addcontentline instructions are present.
             #1 \fi #2\HCode{</span>}\par}
    \def\toclikesection#1#2#3{\par
       \HCode{<span class="likesectionToc" \a:LRdir>}#2\HCode{</span>}\par}%
-   \def\tocsubsection#1#2#3{\par\ \toc:num{subsection}{#1}{#2}\par}
-   \def\toclikesubsection#1#2#3{\par\ 
-      \HCode{<span class="likesubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocsubsubsection#1#2#3{\par
-      \ \ \toc:num{subsubsection}{#1}{#2}\par}
-   \def\toclikesubsubsection#1#2#3{\par
-      \ \ \HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocparagraph#1#2#3{\par\ \ \toc:num{paragraph}{#1}{#2}\par}
-   \def\toclikeparagraph#1#2#3{\par\ \ 
-      \HCode{<span class="likeparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocsubparagraph#1#2#3{\par
-      \ \ \ \ \toc:num{subparagraph}{#1}{#2}\par}
-   \def\toclikesubparagraph#1#2#3{\par
-      \ \ \ \ \HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsubsection#1#2#3{\par\toc:num{subsection}{#1}{#2}\par}
+   \def\toclikesubsection#1#2#3{\par\HCode{<span class="likesubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsubsubsection#1#2#3{\par\toc:num{subsubsection}{#1}{#2}\par}
+   \def\toclikesubsubsection#1#2#3{\par\HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocparagraph#1#2#3{\par\toc:num{paragraph}{#1}{#2}\par}
+   \def\toclikeparagraph#1#2#3{\par\HCode{<span class="likeparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsubparagraph#1#2#3{\par\toc:num{subparagraph}{#1}{#2}\par}
+   \def\toclikesubparagraph#1#2#3{\par\HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
 \else
    |<chapter toc css|>%
    \def\tocchapter#1#2#3{\par
@@ -1883,22 +1877,16 @@ should be used whe addcontentline instructions are present.
       \HCode{<span class="likechapterToc" \a:LRdir>}#2\HCode{</span>}\par}%
    \def\tocappendix#1#2#3{\par
       \HCode{<span class="appendixToc" \a:LRdir>}#1 #2\HCode{</span>}\par}
-   \def\tocsection#1#2#3{\par\ \toc:num{section}{#1}{#2}\par}
-   \def\toclikesection#1#2#3{\par\ \HCode{<span class="likesectionToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocsubsection#1#2#3{\par\ \ \toc:num{subsection}{#1}{#2}\par}
-   \def\toclikesubsection#1#2#3{\par
-      \ \ \HCode{<span class="likesubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocsubsubsection#1#2#3{\par
-      \ \ \ \toc:num{subsubsection}{#1}{#2}\par}
-   \def\toclikesubsubsection#1#2#3{\par
-      \ \ \ \HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocparagraph#1#2#3{\par\ \ \ \toc:num{paragraph}{#1}{#2}\par}
-   \def\toclikeparagraph#1#2#3{\par
-      \ \ \ \HCode{<span class="likeparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocsubparagraph#1#2#3{\par
-      \ \ \ \ \ \toc:num{subparagraph}{#1}{#2}\par}
-   \def\toclikesubparagraph#1#2#3{\par
-      \ \ \ \ \ \HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsection#1#2#3{\par\toc:num{section}{#1}{#2}\par}
+   \def\toclikesection#1#2#3{\par\HCode{<span class="likesectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsubsection#1#2#3{\par\toc:num{subsection}{#1}{#2}\par}
+   \def\toclikesubsection#1#2#3{\par\HCode{<span class="likesubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsubsubsection#1#2#3{\par\toc:num{subsubsection}{#1}{#2}\par}
+   \def\toclikesubsubsection#1#2#3{\par\HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocparagraph#1#2#3{\par\toc:num{paragraph}{#1}{#2}\par}
+   \def\toclikeparagraph#1#2#3{\par\HCode{<span class="likeparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsubparagraph#1#2#3{\par\toc:num{subparagraph}{#1}{#2}\par}
+   \def\toclikesubparagraph#1#2#3{\par\HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
 \fi
 \def\toc:num#1#2#3{\def\:temp{#1#2}%
    \HCode{<span class="#1Toc" \a:LRdir>}\ifx \:temp\empty 
@@ -1919,30 +1907,24 @@ should be used whe addcontentline instructions are present.
         .appendixToc a, .appendixToc, .addchapToc a
         {line-height: 200\%; font-weight:bold;}}
    \def\tocchapter#1#2#3{\par
-      \HCode{<span class="chapterToc" \a:LRdir>}#1\ \ #2\HCode{</span>}\par}
+      \HCode{<span class="chapterToc" \a:LRdir>}#1\ #2\HCode{</span>}\par}
    \def\toclikechapter#1#2#3{\par
       \HCode{<span class="likechapterToc" \a:LRdir>}#2\HCode{</span>}\par}%
    \def\tocaddchap#1#2#3{\par
       \HCode{<span class="addchapToc" \a:LRdir>}#2\HCode{</span>}\par}%
    \def\tocappendix#1#2#3{\par
-      \HCode{<span class="appendixToc" \a:LRdir>}#1\ \ #2\HCode{</span>}\par}
-   \def\tocsection#1#2#3{\par\ \toc:num{section}{#1}{#2}\par}
-   \def\toclikesection#1#2#3{\par\ 
-      \HCode{<span class="likesectionToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocsubsection#1#2#3{\par\ \ \toc:num{subsection}{#1}{#2}\par}
-   \def\toclikesubsection#1#2#3{\par
-      \ \ \HCode{<span class="likesubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocsubsubsection#1#2#3{\par
-      \ \ \ \toc:num{subsubsection}{#1}{#2}\par}
-   \def\toclikesubsubsection#1#2#3{\par
-      \ \ \ \HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocparagraph#1#2#3{\par\ \ \ \toc:num{paragraph}{#1}{#2}\par}
-   \def\toclikeparagraph#1#2#3{\par
-      \ \ \ \HCode{<span class="likeparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
-   \def\tocsubparagraph#1#2#3{\par
-      \ \ \ \ \ \toc:num{subparagraph}{#1}{#2}\par}
+      \HCode{<span class="appendixToc" \a:LRdir>}#1\ #2\HCode{</span>}\par}
+   \def\tocsection#1#2#3{\par\toc:num{section}{#1}{#2}\par}
+   \def\toclikesection#1#2#3{\par\HCode{<span class="likesectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsubsection#1#2#3{\par\toc:num{subsection}{#1}{#2}\par}
+   \def\toclikesubsection#1#2#3{\par\HCode{<span class="likesubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsubsubsection#1#2#3{\par\toc:num{subsubsection}{#1}{#2}\par}
+   \def\toclikesubsubsection#1#2#3{\par\HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocparagraph#1#2#3{\par\toc:num{paragraph}{#1}{#2}\par}
+   \def\toclikeparagraph#1#2#3{\par\HCode{<span class="likeparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
+   \def\tocsubparagraph#1#2#3{\par\toc:num{subparagraph}{#1}{#2}\par}
    \def\toclikesubparagraph#1#2#3{\par
-      \ \ \ \ \ \HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
+      \HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
 \def\toc:num#1#2#3{\def\:temp{#1#2}%
    \HCode{<span class="#1Toc" \a:LRdir>}\ifx \:temp\empty 
    \else \def\:temp{#2}\ifx\:temp\empty\else #2\ \ \fi\fi #3\HCode{</span>}}
@@ -1966,16 +1948,16 @@ should be used whe addcontentline instructions are present.
    \def\toclikesubsection#1#2#3{\par\ 
       \HCode{<span class="likesubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
    \def\tocsubsubsection#1#2#3{\par
-      \ \ \toc:num{subsubsection}{#1}{#2}\par}
+      \toc:num{subsubsection}{#1}{#2}\par}
    \def\toclikesubsubsection#1#2#3{\par
-      \ \ \HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+      \HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
    \def\tocparagraph#1#2#3{\par\ \ \toc:num{paragraph}{#1}{#2}\par}
    \def\toclikeparagraph#1#2#3{\par\ \ 
       \HCode{<span class="likeparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
    \def\tocsubparagraph#1#2#3{\par
-      \ \ \ \ \toc:num{subparagraph}{#1}{#2}\par}
+      \toc:num{subparagraph}{#1}{#2}\par}
    \def\toclikesubparagraph#1#2#3{\par
-      \ \ \ \ \HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
+      \HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
 \else
    \Css{.chapterToc a, .chapterToc, .likechapterToc a, .likechapterToc,
         .appendixToc a, .appendixToc
@@ -1992,18 +1974,18 @@ should be used whe addcontentline instructions are present.
       \HCode{<span class="likesectionToc" \a:LRdir>}#2\HCode{</span>}\par}
    \def\tocsubsection#1#2#3{\par\ \ \toc:num{subsection}{#1}{#2}\par}
    \def\toclikesubsection#1#2#3{\par
-      \ \ \HCode{<span class="likesubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+      \HCode{<span class="likesubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
    \def\tocsubsubsection#1#2#3{\par
-      \ \ \ \toc:num{subsubsection}{#1}{#2}\par}
+      \toc:num{subsubsection}{#1}{#2}\par}
    \def\toclikesubsubsection#1#2#3{\par
-      \ \ \ \HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
+      \HCode{<span class="likesubsubsectionToc" \a:LRdir>}#2\HCode{</span>}\par}
    \def\tocparagraph#1#2#3{\par\ \ \ \toc:num{paragraph}{#1}{#2}\par}
    \def\toclikeparagraph#1#2#3{\par
-      \ \ \ \HCode{<span class="likeparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
+      \HCode{<span class="likeparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
    \def\tocsubparagraph#1#2#3{\par
-      \ \ \ \ \ \toc:num{subparagraph}{#1}{#2}\par}
+      \toc:num{subparagraph}{#1}{#2}\par}
    \def\toclikesubparagraph#1#2#3{\par
-      \ \ \ \ \ \HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
+      \HCode{<span class="likesubparagraphToc" \a:LRdir>}#2\HCode{</span>}\par}
 \fi
 \def\toc:num#1#2#3{\def\:temp{#1#2}%
    \HCode{<span class="#1Toc" \a:LRdir>}\ifx \:temp\empty 
@@ -2029,13 +2011,13 @@ should be used whe addcontentline instructions are present.
   {}
   {\HCode{</span><br />}}
 \ConfigureToc{subsection}
-  {\HCode{<span class="subsectionToc" \a:LRdir>}\ \ \toc:Mark{subsection}}
+  {\HCode{<span class="subsectionToc" \a:LRdir>}\toc:Mark{subsection}}
   {\End:Mark}
   {}
   {\HCode{</span><br />}}
 \ConfigureToc{subsubsection}
   {\HCode{<span
-       class="subsubsectionToc" \a:LRdir>}\ \ \ \ \toc:Mark{subsubsection}}
+       class="subsubsectionToc" \a:LRdir>}\toc:Mark{subsubsection}}
   {\End:Mark}
   {}
   {\HCode{</span><br />}}
@@ -8843,27 +8825,10 @@ The hbox is for avoiding the start of a new paragraph, if in vmode.
 \fi
 |<config book-report-article|>
 |<config report / article 4.0t|>
-\:CheckOption{1} \if:Option 
-\else 
-   \:CheckOption{2} \if:Option \else 
-      \:CheckOption{3} \if:Option \else 
-         \:CheckOption{4} \if:Option \else 
-            \:CheckOption{5} \if:Option \else 
-               \:CheckOption{6} \if:Option \else 
-                  \:CheckOption{7} \if:Option \else 
-                  \fi
-               \fi
-            \fi 
-         \fi 
-      \fi 
-   \fi
-   \if:Option 
-       \Css{.subsectionToc,    .likesubsectionToc    {margin-left:2em;}}
-       \Css{.subsubsectionToc, .likesubsubsectionToc {margin-left:4em;}}
-       \Css{.paragraphToc, .likeparagraphToc {margin-left:6em;}}
-       \Css{.subparagraphToc, .likesubparagraphToc  {margin-left:8em;}}
-   \fi
-\fi 
+\Css{.subsectionToc,    .likesubsectionToc    {margin-left:1em;}}
+\Css{.subsubsectionToc, .likesubsubsectionToc {margin-left:2em;}}
+\Css{.paragraphToc, .likeparagraphToc {margin-left:3em;}}
+\Css{.subparagraphToc, .likesubparagraphToc  {margin-left:4em;}}
 >>>
 
 
@@ -8904,6 +8869,7 @@ The hbox is for avoiding the start of a new paragraph, if in vmode.
 |<config report / article 4.0t|>
 |<32,4 report,book|>
 |<32,4 report|>
+|<book: css|>
 >>>
 
 \<32,4 report\><<<
@@ -8985,70 +8951,26 @@ The hbox is for avoiding the start of a new paragraph, if in vmode.
 .likechapterToc  
                                          {margin-left:0em;}}
 \Css{
-.chapterToc     \string~ .likesectionToc,  
-.chapterToc     \string~ .sectionToc,  
-.likechapterToc \string~ .likesectionToc,        
-.likechapterToc \string~ .sectionToc  
-                                         {margin-left:2em;}}
-\Css{
-.chapterToc     \string~ .likesectionToc \string~ .likesubsectionToc, 
-.chapterToc     \string~ .likesectionToc \string~ .subsectionToc,  
-.chapterToc     \string~ .sectionToc     \string~ .likesubsectionToc, 
-.chapterToc     \string~ .sectionToc     \string~ .subsectionToc,  
-.likechapterToc \string~ .likesectionToc \string~ .likesubsectionToc,     
-.likechapterToc \string~ .likesectionToc \string~ .subsectionToc,  
-.likechapterToc \string~ .sectionToc     \string~ .likesubsectionToc,     
-.likechapterToc \string~ .sectionToc     \string~ .subsectionToc 
-                                         {margin-left:4em;}}
-\Css{.chapterToc     \string~ .likesectionToc \string~ .likesubsectionToc \string~ .likesubsubsectionToc, 
-.chapterToc     \string~ .likesectionToc \string~ .likesubsectionToc \string~ .subsubsectionToc, 
-.chapterToc     \string~ .likesectionToc \string~ .subsectionToc     \string~ .likesubsubsectionToc,  
-.chapterToc     \string~ .likesectionToc \string~ .subsectionToc     \string~ .subsubsectionToc,  
-.chapterToc     \string~ .sectionToc     \string~ .likesubsectionToc \string~ .likesubsubsectionToc, 
-.chapterToc     \string~ .sectionToc     \string~ .likesubsectionToc \string~ .subsubsectionToc, 
-.chapterToc     \string~ .sectionToc     \string~ .subsectionToc     \string~ .likesubsubsectionToc,  
-.chapterToc     \string~ .sectionToc     \string~ .subsectionToc     \string~ .subsubsectionToc,  
-.likechapterToc \string~ .likesectionToc \string~ .likesubsectionToc \string~ .likesubsubsectionToc,    
-.likechapterToc \string~ .likesectionToc \string~ .likesubsectionToc \string~ .subsubsectionToc,    
-.likechapterToc \string~ .likesectionToc \string~ .subsectionToc     \string~ .likesubsubsectionToc,  
-.likechapterToc \string~ .likesectionToc \string~ .subsectionToc     \string~ .subsubsectionToc,  
-.likechapterToc \string~ .sectionToc     \string~ .likesubsectionToc \string~ .likesubsubsectionToc, 
-.likechapterToc \string~ .sectionToc     \string~ .likesubsectionToc \string~ .subsubsectionToc,    
-.likechapterToc \string~ .sectionToc     \string~ .subsectionToc     \string~ .likesubsubsectionToc   
-.likechapterToc \string~ .sectionToc     \string~ .subsectionToc     \string~ .subsubsectionToc 
-                                         {margin-left:6em;}}
-
-       
-\Css{.paragraphToc, .likeparagraphToc {margin-left:8em;}}
-\Css{.subparagraphToc, .likesubparagraphToc  {margin-left:10em;}}
-
+.likesectionToc,        
+.sectionToc  
+                                         {margin-left:1em;}}
 \Css{
-.likesectionToc ,     
-.sectionToc
-                                         {margin-left:0em;}}
-\Css{
-.likesectionToc \string~ .likesubsectionToc,     
-.likesectionToc \string~ .subsectionToc,  
-.sectionToc     \string~ .likesubsectionToc,     
-.sectionToc     \string~ .subsectionToc 
+.likesubsectionToc,     
+.subsectionToc 
                                          {margin-left:2em;}}
-\Css{.likesectionToc \string~ .likesubsectionToc \string~ .likesubsubsectionToc,    
-.likesectionToc \string~ .likesubsectionToc \string~ .subsubsectionToc,    
-.likesectionToc \string~ .subsectionToc     \string~ .likesubsubsectionToc,  
-.likesectionToc \string~ .subsectionToc     \string~ .subsubsectionToc,  
-.sectionToc     \string~ .likesubsectionToc \string~ .likesubsubsectionToc, 
-.sectionToc     \string~ .likesubsectionToc \string~ .subsubsectionToc,    
-.sectionToc     \string~ .subsectionToc     \string~ .likesubsubsectionToc,  
-.sectionToc     \string~ .subsectionToc     \string~ .subsubsectionToc  
-                                         {margin-left:4em;}}
 \Css{
 .likesubsectionToc,     
 .subsectionToc 
-                                         {margin-left:0em;}}
-\Css{
-.likesubsectionToc \string~ .subsubsectionToc,    
-.subsectionToc     \string~ .subsubsectionToc  
                                          {margin-left:2em;}}
+\Css{
+.likesubsubsectionToc,
+.subsubsectionToc 
+                                         {margin-left:3em;}}
+
+       
+\Css{.paragraphToc, .likeparagraphToc {margin-left:4em;}}
+\Css{.subparagraphToc, .likesubparagraphToc  {margin-left:5em;}}
+
 >>>
 
 
diff --git a/support/TeX4ht/source/tex4ht-html5.tex b/support/TeX4ht/source/tex4ht-html5.tex
index d69fe6dfa1..c49bd632d3 100644
--- a/support/TeX4ht/source/tex4ht-html5.tex
+++ b/support/TeX4ht/source/tex4ht-html5.tex
@@ -1,4 +1,4 @@
-% $Id: tex4ht-html5.tex 1284 2023-01-10 21:33:09Z karl $
+% $Id: tex4ht-html5.tex 1379 2023-10-09 11:56:53Z michal_h21 $
 % compile 3 times: latex tex4ht-moz
 %           or   xhlatex tex4ht-moz "html,3,sections+"
 %
@@ -93,11 +93,11 @@ background of generated images in the dark mode, or line lenght.
       max-width:none
     }
 }}
-\Css{.partHead, likepartHead  { font-size: 2em; }}
-\Css{.chapterHead, likechapterHead  { font-size: 1.7411em; }}
-\Css{.sectionHead, likesectionHead  { font-size: 1.5157em; }}
-\Css{.subsectionHead, likesubsectionHead  { font-size: 1.3195em; }}
-\Css{.subsubsectionHead, likesubsubsectionHead  { font-size: 1.1487em; }}
+\Css{.partHead, .likepartHead  { font-size: 2em; }}
+\Css{.chapterHead, .likechapterHead  { font-size: 1.7411em; }}
+\Css{.sectionHead, .likesectionHead  { font-size: 1.5157em; }}
+\Css{.subsectionHead, .likesubsectionHead  { font-size: 1.3195em; }}
+\Css{.subsubsectionHead, .likesubsubsectionHead  { font-size: 1.1487em; }}
 
 \Css{
   @media (prefers-color-scheme: dark) {