diff --git a/src/epub_converter/tag_css_style_converter.py b/src/epub_converter/tag_css_style_converter.py
index 7d1ff1b..37b2672 100644
--- a/src/epub_converter/tag_css_style_converter.py
+++ b/src/epub_converter/tag_css_style_converter.py
@@ -158,48 +158,28 @@ class TagStyleConverter:
 
         Returns
         -------
-        to_remove: list
+        styles_to_remove: list
             properties to remove
 
         """
-        to_remove = []
+        styles_to_remove = []
         for k in LiveCartaConfig.LIVECARTA_STYLE_ATTRS_SHOULD_BE_TAG:
             if f'{k[0]}:{k[1]}' in style:
-                to_remove.append(k)
-        return to_remove
+                styles_to_remove.append(k)
+        return styles_to_remove
 
-    def change_attrs_with_corresponding_tags(self, tag_initial_name: str):
+    def change_attrs_with_corresponding_tags(self):
         # adds <strong>, <u>, <sup> instead of styles
-        to_remove = self.check_style_to_be_tag(self.style)
-        new_tags = []
-        for i, (attr, value) in enumerate(to_remove):
-            s = f'{attr}:{value};'
-            self.style = self.style.replace(s, '')
-            self.style = self.style.strip()
-            if not i:
-                self.tag_inline_style.name = LiveCartaConfig.LIVECARTA_STYLE_ATTRS_SHOULD_BE_TAG[(
-                    attr, value)]
-                new_tags.append(self.tag_inline_style)
-            else:
-                name = LiveCartaConfig.LIVECARTA_STYLE_ATTRS_SHOULD_BE_TAG[(
-                    attr, value)]
-                new_tag = BeautifulSoup(features='lxml').new_tag(name)
-                new_tags[-1].wrap(new_tag)
-                new_tags.append(new_tag)
-
-        top_tag = self.tag_inline_style
-
-        if new_tags:
-            tmp_attrs = top_tag.attrs.copy()
-            top_tag.attrs = {}
-            top_tag2 = BeautifulSoup(features='lxml').new_tag(tag_initial_name)
-            top_tag2.attrs = tmp_attrs
-            if self.style:
-                top_tag2.attrs['style'] = self.style
-            new_tags[-1].wrap(top_tag2)
-        else:
-            top_tag.attrs['style'] = self.style
-        return top_tag
+        styles_to_remove = self.check_style_to_be_tag(self.style)
+        for i, (attr, value) in enumerate(styles_to_remove):
+            self.tag_inline_style.attrs['style'] = self.tag_inline_style.attrs['style']\
+                .replace(f'{attr}:{value};', '').strip()
+            corr_tag_name = LiveCartaConfig.LIVECARTA_STYLE_ATTRS_SHOULD_BE_TAG[(
+                attr, value)]
+            correspond_tag = BeautifulSoup(features='lxml').new_tag(corr_tag_name)
+            for content in reversed(self.tag_inline_style.contents):
+                correspond_tag.insert(0, content.extract())
+            self.tag_inline_style.append(correspond_tag)
 
     @staticmethod
     def wrap_span_in_tag_to_save_style_attrs(initial_tag):
@@ -235,8 +215,7 @@ class TagStyleConverter:
                 initial_tag.wrap(tag)
 
     def convert_initial_tag(self):
-        self.tag_inline_style = self.change_attrs_with_corresponding_tags(
-            self.tag_inline_style.name)
+        self.change_attrs_with_corresponding_tags()
         self.wrap_span_in_tag_to_save_style_attrs(self.tag_inline_style)
         return self.tag_inline_style