katom types from ref/ in groups, @table :leading in lines of text and :rulesep, @code under txt, one table style attribute, literal-klammer options (from dev 2e453744f5e9)

kdesc --katoms is Klammertext rendered from ref/, the types in titled groups,
with --katoms full for the regex column.  @table :leading L is L lines of the
surrounding text in html as in pdf (default 1), and :rulesep spaces the
horizontal rules.  The html table has one style attribute, so :column_width
fractions take effect again.  @code and @source_listing render in plain
text; captions are numbered per kind there, and a table needs no blank line
around it.  @c takes :nd, and an option-shaped word before a bar inside
literal code is code.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

sks/target/css/target.css

@@ -103,6 +103,18 @@
     font-style: italic;
 }
 
+/* A caption flush with its element's left edge (html_util.add_caption,
+   caption_align "left"): @code's caption when the listing is placed left,
+   as the tex target sets it.  AFTER the two rules above, which it must
+   override at equal specificity. */
+.caption_flush_left {
+    align-items: flex-start;
+}
+
+.caption_flush_left .caption {
+    text-align: left;
+}
+
 .caption_left {
     display: inline-flex;
     flex-direction: row;