diff --git a/epub2md/html_converter.py b/epub2md/html_converter.py
index 3e619cf..fb8f6ff 100644
--- a/epub2md/html_converter.py
+++ b/epub2md/html_converter.py
@@ -221,6 +221,8 @@ def _box_type(hint: str) -> str:
         return "important"
     if re.search(r"tipp|\btip|hint", h):
         return "tip"
+    if re.search(r"hinweis|\bnote|notiz|anmerkung|\binfo", h):
+        return "note"
     return ""
 
 
diff --git a/epub2md/normalize.py b/epub2md/normalize.py
index 8f9dc66..78db4e1 100644
--- a/epub2md/normalize.py
+++ b/epub2md/normalize.py
@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import re
+from collections.abc import Callable
 from dataclasses import dataclass, field
 from typing import Any
 
@@ -80,7 +81,8 @@ def book_uses_title_tables(docs: list[Doc]) -> bool:
     return False
 
 
-def normalize_doc(doc: Doc, diag: Diagnostics, title_tables: bool) -> None:
+def normalize_doc(doc: Doc, diag: Diagnostics, title_tables: bool,
+                  hidden: Callable[[Any], bool] | None = None) -> None:
     body = doc.body
     for el in list(iter_elements(body)):
         if not _attached(el, body):
@@ -107,19 +109,19 @@ def normalize_doc(doc: Doc, diag: Diagnostics, title_tables: bool) -> None:
             doc.toc_ids.update(e.get("id") for e in iter_elements(el) if e.get("id"))
             remove_keep_tail(el)
             diag.info("html-toc-removed", "HTML-Inhaltsverzeichnis entfernt (ersetzt durch README.md).", doc.path)
-    separated = _separate_field_spans(body)
+    separated = _separate_field_spans(body, hidden or (lambda el: False))
     if separated:
         diag.info("inline-separator-added",
                   f"{separated} Leerzeichen zwischen aneinanderstoßenden Feld-Spans eingefügt.", doc.path)
 
 
-def _separate_field_spans(body: Any) -> int:
+def _separate_field_spans(body: Any, hidden: Callable[[Any], bool]) -> int:
     """Insert a space between adjacent class-styled <span> "fields" that touch without whitespace.
 
     Publishers sometimes lay out metadata as sibling spans (author | title | series) separated only by
     CSS. Narrow rule to keep drop caps ("D|as") and split words ("Haupt|bahnhof") intact: both spans
     carry different classes, no text between them, both have >= 2 characters and the right one starts
-    with an uppercase letter or digit.
+    with an uppercase letter or digit. Spans hidden by the book's CSS (display:none) get no separator.
     """
     count = 0
     for parent in iter_elements(body):
@@ -132,7 +134,7 @@ def _separate_field_spans(body: Any) -> int:
             lt, rt = text_content(left), text_content(right)
             if len(lt.strip()) < 2 or len(rt.strip()) < 2 or lt[-1].isspace() or rt[0].isspace():
                 continue
-            if rt[0].isupper() or rt[0].isdigit():
+            if (rt[0].isupper() or rt[0].isdigit()) and not hidden(left) and not hidden(right):
                 left.tail = " "
                 count += 1
     return count
diff --git a/epub2md/pipeline.py b/epub2md/pipeline.py
index c9021b4..bc10e24 100644
--- a/epub2md/pipeline.py
+++ b/epub2md/pipeline.py
@@ -8,6 +8,7 @@ import re
 import shutil
 import sys
 import tempfile
+from collections.abc import Callable
 from dataclasses import asdict, dataclass, field
 from datetime import datetime, timezone
 from pathlib import Path
@@ -16,7 +17,7 @@ from typing import Any
 from . import TOOL_NAME, __version__
 from .chapters import ChapterBuilder
 from .diagnostics import Diagnostics
-from .css import StyleSheet, base_style
+from .css import StyleSheet, base_style, emphasis
 from .epub_reader import EpubReader, decode_markup, parse_xml
 from .errors import ContainerError, InputError, StructureError
 from .footnotes import collect_notes
@@ -140,7 +141,8 @@ def _convert(reader: EpubReader, input_path: Path, output_dir: Path, opts: Optio
     diag.step(f"EPUB {package.version}: {package.metadata.title!r}, {len(package.spine)} Spine-Dokumente")
     docs = _load_docs(reader, package, diag)
     stylesheet = _load_stylesheet(reader, package, docs, diag)  # before normalization drops <style>
-    _prepare_docs(docs, package, diag)
+    hidden = (lambda el: emphasis(stylesheet.computed(el))["hidden"]) if opts.css_emphasis else None
+    _prepare_docs(docs, package, diag, hidden)
     notes, chapters, resolver = _build_structure(docs, package, opts, diag)
     rendered = _render(reader, package, chapters, resolver, notes, opts, diag, stylesheet)
     files, all_chapters, report = _assemble(input_path, output_dir, opts, diag, generated_at, sha, package, docs,
@@ -184,11 +186,12 @@ class _Rendered:
     skipped_formula_images: int
 
 
-def _prepare_docs(docs: list[Doc], package: Any, diag: Diagnostics) -> None:
+def _prepare_docs(docs: list[Doc], package: Any, diag: Diagnostics,
+                  hidden: Callable[[Any], bool] | None = None) -> None:
     """Normalize publisher markup and drop HTML tables of contents that NAV/NCX already cover."""
     title_tables = book_uses_title_tables(docs)
     for doc in docs:
-        normalize_doc(doc, diag, title_tables)
+        normalize_doc(doc, diag, title_tables, hidden)
     landmark_toc_docs = {lm.path for lm in package.landmarks if lm.type == "toc" and lm.path and not lm.fragment}
     for lm in package.landmarks:
         if lm.type == "toc" and lm.fragment:
diff --git a/tests/test_styles.py b/tests/test_styles.py
index c3b42ea..cc253d8 100644
--- a/tests/test_styles.py
+++ b/tests/test_styles.py
@@ -192,3 +192,12 @@ def test_book_readme_suggests_callout_filter(convert):
     assert "--lua-filter" in readme and "pandoc/callouts.lua" in readme and "1 Infokasten " in readme
     plain = convert(Book(docs=[Doc("c.xhtml", body)]), "--boxes", "plain").out / "README.md"
     assert "--lua-filter" not in plain.read_text(encoding="utf-8")
+
+
+def test_hidden_span_gets_no_field_separator_and_class_type_wins(convert):
+    css = b".u { text-decoration: underline; } .weg { display: none; }"
+    body = ('<h1>K</h1><p><span class="u">unterstrichen</span><span class="weg">VERSTECKT</span>.</p>'
+            '<div class="box hinweis"><h3 class="boxheading">Wichtige Regel</h3><p>Immer testen.</p></div>')
+    text = convert(Book(docs=[Doc("c.xhtml", body)], media={"s.css": css})).chapter("001")
+    assert "<u>unterstrichen</u>." in text and "VERSTECKT" not in text
+    assert "> [!NOTE]\n> **Wichtige Regel**" in text  # class 'hinweis' beats the word in the title