diff --git a/src/html_presets_processor.py b/src/html_presets_processor.py
index 2a8e426..f7d1e64 100644
--- a/src/html_presets_processor.py
+++ b/src/html_presets_processor.py
@@ -17,6 +17,7 @@ class HtmlPresetsProcessor:
             "decomposer": self._decompose_tag,
             "replacer": self._replace_tag,
             "attr_remover": self._remove_attr,
+            "attr_property_replacer": self._replace_attr_property,
             "attr_replacer": self._replace_attr,
             "unwrapper": self._unwrap_tag,
             "inserter": self._insert_tag,
@@ -170,23 +171,73 @@ class HtmlPresetsProcessor:
                 new_value = re.sub(pattern, "", attr_string)
                 kwargs["found_tag"][attr_name] = new_value
 
+    @staticmethod
+    def _replace_attr_property(**kwargs):
+        """
+        Replaces a property or value in an HTML tag attribute.
+
+        Parameters:
+            **kwargs (dict): A dictionary containing the following keys:
+                - "rule" (dict): A dictionary containing the rule to apply.
+                - "found_tag" (dict): A dictionary containing the attributes of the tag to modify.
+
+        Returns:
+            None.
+        """
+        rule = kwargs["rule"]
+        found_tag = kwargs["found_tag"]
+        attr = rule["condition"]["attrs"][0]
+        attr_name = attr.get("name", None)
+        attr_value = attr.get("value", None)
+        property_name, property_value = attr_value.split(":")
+        property_name_to_replace = rule["property_to_replace"].get("name", None)
+        property_value_to_replace = rule["property_to_replace"].get("value", None)
+
+        if attr_name is None or found_tag.get(attr_name) is None:
+            return
+
+        pattern = r'\b' + re.escape(property_name) + r'\s*:\s*[^;]*'
+
+        if property_name_to_replace:
+            # Replace property name
+            if property_value_to_replace:
+                # Also replace property value
+                found_tag[attr_name] = re.sub(pattern, f"{property_name_to_replace}:{property_value_to_replace}",
+                                              found_tag[attr_name])
+            else:
+                # Only replace property name
+                found_tag[attr_name] = re.sub(pattern, f"{property_name_to_replace}:{property_value}",
+                                              found_tag[attr_name])
+        elif property_value_to_replace:
+            # Replace only property value
+            found_tag[attr_name] = re.sub(pattern, f"{property_name}:{property_value_to_replace}",
+                                          found_tag[attr_name])
+        else:
+            # Remove this property from tag
+            found_tag[attr_name] = re.sub(pattern, "", found_tag[attr_name])
+
+
     @staticmethod
     def _replace_attr(**kwargs):
         attr = kwargs["rule"]["condition"]["attrs"][0]
         attr_name, attr_value =\
             attr["name"], attr["value"]
-        attr_to_replace, attr_value_to_replace =\
+        attr_name_to_replace, attr_value_to_replace =\
             kwargs["rule"]["attr_to_replace"]["name"], kwargs["rule"]["attr_to_replace"]["value"]
-        if attr_to_replace:
-            kwargs["found_tag"][attr_to_replace] = kwargs["found_tag"][attr_name] \
+        if attr_name_to_replace:
+            # replace attr name
+            kwargs["found_tag"][attr_name_to_replace] = kwargs["found_tag"][attr_name] \
                 if kwargs["found_tag"].get(attr_name)\
                 else ""
             if attr_value_to_replace:
-                kwargs["found_tag"].attrs[attr_to_replace] = attr_value_to_replace
+                # also replace attr value
+                kwargs["found_tag"].attrs[attr_name_to_replace] = attr_value_to_replace
             del kwargs["found_tag"][attr_name]
         elif attr_value_to_replace:
+            # replace ONLY attr value
             kwargs["found_tag"].attrs[attr_name] = attr_value_to_replace
         elif attr_name:
+            # remove this attr from tag
             del kwargs["found_tag"][attr_name]
 
     def _unwrap_tag(self, **kwargs):