format multiple selectors

Author: attack68

pandas/io/formats/style.py

@@ -23,6 +23,7 @@
 from uuid import uuid4
 
 import numpy as np
+from typing_extensions import TypedDict
 
 from pandas._config import get_option
 
@@ -55,7 +56,14 @@
 CSSPair = Tuple[str, Union[str, int, float]]
 CSSList = List[CSSPair]
 CSSProperties = Union[str, CSSList]
-CSSStyles = List[Dict[str, CSSProperties]]
+
+
+class CSSDict(TypedDict):
+    selector: str
+    props: CSSProperties
+
+
+CSSStyles = List[CSSDict]
 
 try:
     from matplotlib import colors
@@ -2088,7 +2096,7 @@ def _format_table_styles(styles: CSSStyles) -> CSSStyles:
         item
         for sublist in [
             [
-                {"selector": x, "props": style["props"]}
+                CSSDict(selector=x, props=style["props"])
                 for x in style["selector"].split(",")
             ]
             for style in styles