diff --git a/src/epub_converter/html_epub_preprocessor.py b/src/epub_converter/html_epub_preprocessor.py
index 450d776..f9c2c06 100644
--- a/src/epub_converter/html_epub_preprocessor.py
+++ b/src/epub_converter/html_epub_preprocessor.py
@@ -198,7 +198,7 @@ def _remove_headings_content(content_tag, title_of_chapter: str):
         text = tag if isinstance(tag, NavigableString) else tag.text
         if re.sub(r"[\s\xa0]", "", text):
             text = re.sub(r"[\s\xa0]", " ", text).lower()
-            text = text.strip() # delete extra spaces
+            text = text.strip()   # delete extra spaces
             if title_of_chapter == text or \
                     (title_of_chapter in text and
                      re.findall(r"^h[1-3]$", tag.name or content_tag.name)):
diff --git a/src/livecarta_config.py b/src/livecarta_config.py
index a81ffca..9929cda 100644
--- a/src/livecarta_config.py
+++ b/src/livecarta_config.py
@@ -120,13 +120,20 @@ class LiveCartaConfig:
         ("section", "blockquote",) : ("class", r"feature[1234]"),
     }
 
-    REPLACE_REGEX_WITH_LIVECARTA_CORRESPOND_TAGS = {
+    """('what to replace', 'parent tag', 'child tag')"""
+    REPLACE_TAG_WITH_LIVECARTA_CORRESPOND_TAGS = {
         (r"^h[6-9]$", "^figure$", "^section$", "^div$"): "p",
         ("^aside$",): "blockquote",
-        ("^header$", "^footer$"): "span",
+        ("^header$", "^footer$", ("child", ":not(pre)", "code, kbd, var")): "span",
         ("^b$",): "strong",
+        # (("parent", ":not(pre)", "code")): "p",
     }
 
+    """ > == in (p in li)"""
     TAGS_TO_UNWRAP = [
-        "section", "article", "figcaption", "main", "body", "html",
+        "section", "article", "figcaption", "main", "body", "html", "li > p",
     ]
+
+    INSERT_TAG_IN_PARENT_TAG = {
+        ("pre", "code, kbd, var"): "code",
+    }