diff --git a/src/style_reader.py b/src/style_reader.py
index 8831f9a..d178e32 100644
--- a/src/style_reader.py
+++ b/src/style_reader.py
@@ -1,6 +1,6 @@
 import re
 import cssutils
-from typing import List, Tuple, Union
+from typing import List, Tuple
 from os.path import dirname, normpath, join
 
 from src.util.color_reader import str2hex
@@ -74,7 +74,7 @@ class StyleReader:
         def convert_size_number(size_number: str, unit_to_replace: str, multiplier: float) -> str:
             size_number = float(size_number.replace(unit_to_replace, "")) * multiplier
             return str(size_number) + "px"
-        has_size = re.search(r"(\d+)([\w%]+)", size_value)
+        has_size = re.search(r"(\d+(?:\.\d+)?)([\w%]+)", size_value)
         values: List = size_value.split(" ")
         if has_size:
             size_number_idx = [i for i, value in enumerate(values) if re.search("(\d+)([\w%]+)", value)][0]