diff --git a/seleniumbase/core/style_sheet.py b/seleniumbase/core/style_sheet.py
index 3ac19a5a..7547fe6e 100755
--- a/seleniumbase/core/style_sheet.py
+++ b/seleniumbase/core/style_sheet.py
@@ -102,7 +102,7 @@ bt_backdrop_style = (
     '''
     .tour-tour-element {
         box-shadow: 0 0 0 99999px rgba(0, 0, 0, 0.20);
-        pointer-events:  none !important;
+        pointer-events: none !important;
         z-index: 9999;
     }
 
@@ -139,13 +139,13 @@ sh_backdrop_style = (
     '''
     body.shepherd-active .shepherd-target.shepherd-enabled {
         box-shadow: 0 0 0 99999px rgba(0, 0, 0, 0.20);
-        pointer-events:  none !important;
+        pointer-events: none !important;
         z-index: 9999;
     }
 
     body.shepherd-active .shepherd-orphan {
         box-shadow: 0 0 0 99999px rgba(0, 0, 0, 0.20);
-        pointer-events:  auto;
+        pointer-events: auto;
         z-index: 9999;
     }
 
@@ -160,11 +160,11 @@ sh_backdrop_style = (
     }
 
     body.shepherd-active .shepherd-step {
-        pointer-events:  auto;
+        pointer-events: auto;
         z-index: 9999;
     }
 
     body.shepherd-active {
-        pointer-events:  none !important;
+        pointer-events: none !important;
     }
     ''')