docs: note hspace inline fallback needs HTML mode (sanitizer strips style attrs)

1 files changed, 3 insertions, 2 deletions

diff --git a/acarp.css b/acarp.css
index a292f90..c3dcdb5 100644
--- a/acarp.css
+++ b/acarp.css
@@ -332,8 +332,9 @@ section .math {
 /* Horizontal offset utilities - add left padding.
    Works on inline spans (offset within a line) and block wrappers
    (indents the whole block). Cleaner than runs of  .
-   For custom offsets, use an inline-padded element instead:
-     <span style="padding-left: 8em">text</span> */
+   Note: inline style="" attrs are stripped by Marp's sanitizer unless
+   HTML mode is enabled, so prefer these classes over inline padding-left.
+   For custom offsets without HTML mode there is no inline fallback. */
 .hspace-tiny { padding-left: 0.5em !important; }
 .hspace-small { padding-left: 1em !important; }
 .hspace-medium { padding-left: 2em !important; }